10 terms

chord

A segment whose endpoints lie on a circle

Radius

The distance from the center of a circle to any point on the circle

diameter

A line that passes through the center of the circle, connecting any two points

circumference

The distance around a circle

acute triangle

A triangle with 3 acute angles

obtuse triangle

A triangle with one angle that is greater than 90 degrees.

equilateral triangle

a triangle with 3 congruent sides

scalene triangle

a triangle with no congruent sides

iscosceles triangle

has at least two congruent sides and angles

triangle

A polygon with three angles with a sum of 180 degrees