Whitney Geometry
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| acute triangle | A triangle in which all three angles are acute Examples:
🗑
|
||||
| angle | A figure formed by two rays that have a common endpoint Example:
🗑
|
||||
| chord | A line segment with its endpoints on a circle Example:
🗑
|
||||
| circle | A closed plane figure with all points on the figure the same distance from the center Example:
🗑
|
||||
| circumference | The distance around a circle Example:
🗑
|
||||
| closed figure | A figure that begins and ends at the same point Examples:
🗑
|
||||
| cone | A solid figure that has a circular base and one vertex Examples:
🗑
|
||||
| congruent | Having the same size and shape Example: The triangles are congruent.
🗑
|
||||
| congruent figures | Figures that have the same size and shape Example: The triangles are congruent.
🗑
|
||||
| coordinate plane | A plane formed by two intersecting and perpendicular number lines called axes Example:
🗑
|
||||
| coordinates | The numbers in an ordered pair Example:
🗑
|
||||
| cube | A solid figure with six congruent square faces Examples:
🗑
|
||||
| cylinder | A solid figure that has two parallel bases that are congruent circles Examples:
🗑
|
||||
| degree (°) | A unit for measuring angles and temperature Examples:
🗑
|
||||
| diamete | A line segment that passes through the center of a circle and has its endpoints on the circle Example: diameter
🗑
|
||||
| dimension | A measure in one direction; the length, width, or height of a figure
🗑
|
||||
| edge | The line segment where two faces of a solid figure meet Example: edge
🗑
|
||||
| equilateral triangle | A triangle with three congruent sides Example:
🗑
|
||||
| face | A polygon that is a flat surface of a solid figure Example: face
🗑
|
||||
| figurate numbers | Numbers that can be represented by geometric figures Examples:
🗑
|
||||
| hexagon | A polygon with six sides and six angles Examples:
🗑
|
||||
| hypotenuse | In a right triangle, the side opposite the right angle; the longest side in a right triangle Example: hypotenuse
🗑
|
||||
| intersecting lines | Lines that cross at exactly one point Example: Line EF intersects line GH.
🗑
|
||||
| isosceles triangle | A triangle with two congruent sides Example:
🗑
|
||||
| line | A straight path in a plane that goes on forever in opposite directions Example: line AB or line BA
🗑
|
||||
| line segment | A part of a line that includes two points, called endpoints, and all of the points between them Example: line segment AB or line segment BA
🗑
|
||||
| line symmetry | A figure has line symmetry if a line can separate the figure into two congruent parts Example:
🗑
|
||||
| obtuse angle | An angle whose measure is greater than 90° and less than 180° Example:
🗑
|
||||
| obtuse triangle | A triangle that has one obtuse angle Example:
🗑
|
||||
| octagon | A polygon with eight sides Examples:
🗑
|
||||
| ordered pair | A pair of numbers used to locate a point on a coordinate plane; the first number tells how far to move horizontally and the second number tells how far to move vertically Example: (1,2) represents 1 unit to the right of zero and 2 units up.
🗑
|
||||
| parallel lines | Lines in a plane that never intersect Example:
🗑
|
||||
| parallelogram | A quadrilateral whose opposite sides are parallel and congruent Examples:
🗑
|
||||
| pentagon | A polygon with five sides Examples:
🗑
|
||||
| perpendicular lines | Two lines that intersect to form four right angles Example:
🗑
|
||||
| (noun) | The ratio of the circumference of a circle to its diameter An approximate decimal value of pi is 3.14.
🗑
|
||||
| plane | A flat surface that extends without end in all directions Example: Planes are named by three points in the plane
🗑
|
||||
| plane figure | A figure which lies in a plane Examples:
🗑
|
||||
| point | An exact location in space, usually represented by a dot Example: point A
🗑
|
||||
| When a figure can be turned half way about a central point and still look the same Example:
🗑
|
|||||
| polygon | A closed plane figure formed by three or more line segments Examples:
🗑
|
||||
| polyhedron | A solid figure with flat faces that are polygons Examples:
🗑
|
||||
| prism | A solid figure that has two congruent, polygon-shaped bases, and other faces that are all rectangles Examples: rectangular prism triangular prism
🗑
|
||||
| protractor | A tool used for measuring or drawing anglesExample:
🗑
|
||||
| pyramid | A solid figure with a polygon base and all other faces triangles that meet at a common vertex Example: This is a square pyramid.
🗑
|
||||
| quadrilateral | A polygon with four sides Examples:
🗑
|
||||
| radius | A line segment with one endpoint at the center of a circle and the other endpoint on the circle Example: radius
🗑
|
||||
| ray | A part of a line, with one endpoint, that continues without end in one direction Example: ray CD
🗑
|
||||
| rectangle | A parallelogram with four right angles Example:
🗑
|
||||
| rectangular prism | A solid figure in which all six faces are rectangles Example:
🗑
|
||||
| reflection (flip) | A movement of a figure to a new position by flipping it over a line Example:
🗑
|
||||
| regular polygon | A polygon in which all sides are congruent and all angles are congruent Examples:
🗑
|
||||
| rhombus | A parallelogram with four congruent sides Example:
🗑
|
||||
| right angle | An angle formed by perpendicular lines, line segments, or rays and with a measure of 90° Example:
🗑
|
||||
| right triangle | A triangle with one right angle Example:
🗑
|
||||
| rotation (turn) | A movement of a figure by turning it around a fixed point Example:
🗑
|
||||
| rotational symmetry | The property of a figure that can be rotated less than 360° around a central point and still be congruent to the original figure Example:
🗑
|
||||
| scale drawing | A drawing that shows a real object smaller than (a reduction) or larger than (an enlargement) the real object Example:
🗑
|
||||
| scalene triangle | A triangle with no congruent sides Example:
🗑
|
||||
| similar figures | Figures with the same shape but not necessarily the same size Example:
🗑
|
||||
| solid figure | A three-dimensional figure Examples: sphere cube
🗑
|
||||
| sphere | A solid figure that has the shape of a round ball; all points are the same distance from the center Example:
🗑
|
||||
| square | A rectangle with 4 equal sides Example:
🗑
|
||||
| square pyramid | A pyramid with a square base and four triangular faces Example:
🗑
|
||||
| tangram | A puzzle consisting of seven polygon-shaped pieces that can be rearranged to make various figures or shapes Example:
🗑
|
||||
| tessellation | An arrangement of closed figures that completely covers a surface with no gaps and no overlaps Example:
🗑
|
||||
| three-dimensional | Measured in three directions, such as length, width, and height Example: heightwidth lengthThe rectangular prism is a three-dimensional figure.
🗑
|
||||
| transformation | The movement of a figure by a translation, reflection, or rotation Examples: translationreflectionrotation
🗑
|
||||
| translation (slide) | A movement of a figure along a straight line Example:
🗑
|
||||
| trapezoid | A quadrilateral with one pair of parallel sides Examples:
🗑
|
||||
| triangle | A polygon with three sides Examples:
🗑
|
||||
| triangular number | A number that can be represented by a triangular array Examples:
🗑
|
||||
| two-dimensional | Measured in two directions, such as length and width Example: widthlength
🗑
|
||||
| vertex | The point where two or more rays meet; the point of intersection of two sides of a polygon; the point of intersection of three or more edges of a solid figure; the top point of a cone; the plural of vertex is vertices Examples:
🗑
|
||||
| volume | The measure of the amount of space a solid figure occupies Example: The volume of this figure is 24 cubic units
🗑
|
||||
| x-axis | The horizontal number line on a coordinate plane Example:
🗑
|
||||
| x-coordinate | The first number in an ordered pair, which tells the distance to move right or left from (0, 0) Example:
🗑
|
||||
| y-axis | The vertical number line on a coordinate plane Example:
🗑
|
||||
| y-coordinate | The second number in an ordered pair, it tells the distance to move up or down from (0, 0) Example:
🗑
|
||||
| Circumference | C = x d
🗑
|
||||
| Volume of rectangular prism | V = l x w x h
🗑
|
||||
| Perimeter of polygon | = sum of lengths of sides
🗑
|
||||
| Perimeter of rectangle | P = (2 x l) + (2 x w)
🗑
|
||||
| Perimeter of square | P = 4 x s
🗑
|
||||
| Area of rectangle | A = l x w
🗑
|
||||
| Area of parallelogram | A = bh
🗑
|
||||
| Area of triangle | A = bh
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
whitneyherring
Popular Math sets