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Covering & Surround

Covering & Surrounding

Area The measure of the amount of surface enclosed by the boundary of a two-dimensional figure. Example: painting a wall, carpeting a floor)
Perimeter The measure of the distance around a two-dimensional figure. Example: Fencing around a garden, trim along the walls)
Scalene triangle A triangle with no sides of the same length
Surface Area The total area of all the faces of a three-dimensional shape
Vertex The corner of a polygon
Volume The measure of space occupied by a three-dimensional shape; the number of unit cubes that will fit inside a three-dimensional shape
Edge A line segment that is formed where two faces of a three-dimensional figure meet
Equilateral triangle A triangle with all three sides of the same length
Face A flat, two-dimensional surface of a three-dimensional shape
Isosceles triangle A triangle with two sides of the same length
Net A two-dimensional pattern that can be folded into a three-dimensional figure
Regular polygon A polygon with all of its angles AND side lengths equal
Right triangle A triangle with one right angle
Obtuse triangle A triangle with one obtuse angle
Acute triangle A triangle with all acute angles
Right angle An angle that measures exactly 90 degrees
Perpendicular lines Two lines that intersect to form right angles
Parallel lines Two lines that will never intersect
Polygon A closed shape formed by line segments, called sides (striaght lines, no intersections, closed figure)
Prism A three-dimensional shape with a top and bottom base that are congruent polygons and all other sides are parallelograms
Pyramid A three-dimensional shape with one polygonal base and all other triangular sides that meet at a vertex opposite the base
Adjacent Means "next to"
Congruent Having the exact same size and shape
Similar Describes figures that have the same shape, but not necessarily the same size, corresponding sides are proportional in length
Parallelogram A quadrilateral with two pairs of parallel sides (opposite sides are also congruent)
Trapezoid A quadrilateral with at least one pair of opposite sides that are parallel
Rhombus A quadrilateral that has all sides of the same length
Square A quadrilateral with all sides of the same length and four right angles
Quadrilateral A polygon with four sides
Height The perpendicular distance from a vertex to the opposite side (base) of a figure
Created by: vinborg