Acute angle - answer✔an angle that measures less than 90 degrees
acute triangle - answer✔a triangle with each angle less than 90 degrees
adjacent - answer✔next to, side by side
altitude - answer✔a line segment that joins a figure's vertex to its opposite side; it is also perpendicular
to the opposite side
angle - answer✔two rays that share an endpoint
arc - answer✔part of a circle or any curve
area - answer✔the amount of surface inside a shape
bisect - answer✔to divide into two parts
center - answer✔exactly in the middle
chord - answer✔a line segment that joines two points on a circle
circle - answer✔a figure made up of points the same distance from another point
circumference - answer✔the distance around a circle
complementary angle - answer✔one of two angles whose sum is 90 degrees
concave - answer✔a polygon with an angle greater than 180 degrees
concentric - answer✔with the same center
cone - answer✔a solid with a circle base and one vertex
congruent - answer✔having the same size and shape
construct - answer✔to draw a geometric figure with a compass and ruler
convex - answer✔a polygon with each angle less than 180 degrees
coordinate grid - answer✔a graph for finding points
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