Geometry Vocabulary

Front

A polygon is a 2-D shape that has no: vertices, curves, angles, parallel lines

Back

curves

Front

Which type of polygon has 3 sides, 3 angles, and 3 vertices?

Back

Triangle

Front

Back

obtuse angle

Front

Back

right angle

Front

Back

parallel lines

Front

Acute

Back

Less than 90

Front

Obtuse

Back

Greater than 90 and less than 180

Front

An angle whose measure is exactly 90 degrees.

Back

right

Front

Prefix "quad"

Back

four

Front

Prefix "tri"

Back

three