Intro to Geometry

Front

Define Straight

Back

Exactly 180 degrees.

Front

Identify the type of angle that is exactly 90 degrees.

Back

Right Angle.

Front

What type of triangle has one right (90°) angle?

Back

Right Triangle.

Front

What type of triangle has one angle greater than 90°?

Back

Obtuse Triangle.

Front

What do perpendicular lines do?

Back

Intersect to form right angles.

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is an obtuse angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

Front

What is a reflex angle?

Back

An angle that is greater than 180 degrees.

Front

What is a triangle?

Back

A polygon with three edges and three vertices.

Front

What are congruent angles?

Back

Angles that have the same measure.