Randolph
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is an adjective describing points which lie on the same line? | Colinear
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| What is an adjective describing points which lie on the same plane? | Coplanar
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| Lines intersect in a _____. | Point
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| Planes intersect in a _____. | Plane
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| A polygon is _____ if all of its sides are congruent. | Equilateral
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| A polygon is _____ if all of its interior angles are congruent. | Equiangular
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| A polygon is _____ if it is both equilateral and equiangular. | Regular
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| An unproven statement that is based on a pattern or observation. | Conjecture
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| Process of looking for patterns and making conjectures. | Inductive Reasoning
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| An example that shows a conjecture is false. | Counterexample
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| Has no dimension. It is represented by a small dot. | Point
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| Has one dimension. It extends without end in 2 directions. | Line
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| Has 2 dimensions. It is represented by a shape that looks like a floor or wall. | Plane
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| Statements that are accepted without further justification. | Postulates
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| Points that lie on the same line. | Collinear Points
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| Points that lie on the same plane. | Coplanar Points
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| Lines that lie on the same plane. | Coplanar Lines
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| Part of a line that consists of 2 points, called end points, and all points on the line that are between the endpoints. | Segment
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| Have the same length. | Congruent Segments
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| Endpoint of the angle. | Vertex
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| Measure is between 0° to 90° | Acute Angle
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| Measure is 90° | Right Angle
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| Measure is between 90° to 180° | Obtuse Angle
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| Measure is 180° | Straight Angle
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| Any particular extent of space or surface | Area
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| A straight line extending from the center of a circle or sphere to the circumference or surface | Radius
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| A straight line passing through the center of a circle or sphere and meeting the circumference or surface at each end. | Diameter
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| The outer boundary, especially of a circular area | Circumference
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| A plane figure bounded by two radiuses and the included arc of a circle | Sector
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| Relation in degree or number between two similar things. | Ratio
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| An equation stating that two ratios are equivalent. | Proportion
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| Two polygons whose corresponding angles are congruent and the lengths of the corresponding sides are proportional. | Similar Polygons
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| A segment, ray, line, or plane that intersects a segment at its midpoint | Segment Bisector
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| A ray that divides an angle into 2 angles that are congruent | Angle Bisector
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| Two angles whose degrees total 180 degrees | Supplementary
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| a true statement that follows from other true statements | Theorem
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| 2 adjacent angles that have noncommon sides on the same line | Linear Pair
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| Uses facts, definitions, accepted properties, and the laws of logic to make a logical argument | Deductive Reasoning
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| A three dimensional shape | Solid
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| A congruent polygon usually found at the top or bottom of a shape | Base
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| The surfaces on planes | Face
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| The sum of polyhedron's surfaces | Surface Area
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| Ratio of lengths of 2 corresponding sides of thw similar polygons | Scale Factor
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| Segment that connects the midpoints of two sides of a triangle | Midpoint of a Triangle
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| Transformation with center C and scale factor K that maps each point P to an image P' so that p" lies on ray CP and CP' = K(CP) | Dilation
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| Amount of surface covered by a figure | Area
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| Distance from the center to a point on the circle | Radius
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| Distance across the circle through the center | Diameter
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| Distance around the circle | Circumference
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| Region of a circle determined by 2 radii and a part of the circle | Sector
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| no line that contains a side of the polygon passes through interior (a shape that doesn't curve in etc). | Convex
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| a polygon that isn't convex (a shape that does curve in). | Concave
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| all sides are congruent | Equilateral
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| all angles are congruent | Equiangular
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| if a polygon is equi/angular/lateral | Regular
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| the three original triangles angles on the inside. | Interior Angles
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| the three extended angles on the outside that are also adjacent to the interior. | Exterior Angles
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| a parallelogram with four congruent sides and angles | Square
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| a parallelogram with four right angles | Rectangle
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| the perpendicular segment from a vertex to the line containing the opposite side | Height of a Triangle
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| When a point is the same distance from one line as it is from another line | Equidistant
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| A segment, ray, or line that is perpendicular to a segment at its midpoint | Perpendicular Bisector
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| a transformation that creates a mirror image | Reflection
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| a line of reflection | Line of Symmetry
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| A quadrilateral with exactly one pain of parallel sides called bases. The nonparallel sides are the legs | Trapezoid
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| a trapezoid with congruent legs | Isosceles Trapezoid
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| A segment that connects the midpoints of two sides of a triangle. | Midsegment of a Trapezoid
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| A triangle with three acute angles | Acute Triangle
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| Two angles at the base of an isosceles triangle | Base angles of an Isosceles Triangle
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| The point at which the three medians of a triangle intersect | Centroid
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| Gives the distance between two points in a coordinate plane. | Distance Formula
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| Angles that are adjacent to the interior angles | Exterior Angles
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| The side opposite the right angle in a right triangle | Hypotenuse
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| The congruent sides of an isosceles triangle. | Legs of Isosceles Triangle
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| A segment from a vertex to the midpoint of the opposite side | Triangle Median
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| A triangle with one obtuse angle | Obtuse Triangle
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| The square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the legs in a right triangle | Pythagorean Theorem
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| A triangle with one right angle | Right Triangle
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| A triangle with no congruent sides | Scalene Triangle
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| segment whose endpoints are points on a circle | Chord
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| line that intersects a circle in two points | Secant
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| a line in the plane of a dircle that intersects the circle in exactly one point (point of tangency) | Tangent
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| an arc whose endpoints form an angle less than 180 degrees with the center of the circle | Minor Arc
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| an arc of a circle that is longer than a semicircle | Major Arc
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| the measure of an arc | Arc Length
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| an angle placed inside a circle with its vertex on the circle and whose sides contain chords of the circle | Inscribed Angle
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| an arc of the circle in the interior of an angle | Intercepted Angle
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| the action of rotating around an axis or center (fixed point) | Rotation
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| symmetry when obtained by a rotation | Rotational Symmetry
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| sum of the areas of the lateral faces | Lateral Area
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| perpendicular distance between the vertex and the base, height of any of the lateral faces. | Slant Height
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| the number of cubic units contained in the object's interior | Volume
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| a half of a sphere | Hemiphere
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| a point on the segment that divides it into two congruent sides | Midpoint
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| a line that divides the segment into two congruent segments | Bisector
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| two angles that add up to 90 degrees | Complimentary Angles
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| two angles that shares a common vertex and same side. There are no common interior points | Adjacent
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| non-adjacent angles formed by two intersecting lines. They are diagnal to each other | Vertical Angles
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| the “if” contains the hypothesis and the “then” contains the conclusion | If-Then Statement
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| A polygon is _____ if no line that contains a side of the polygon passes through the interior of the polygon. | Convex
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Created by:
hdrew
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