Triangles and Angles Practice

Front

An angle whose measure is exactly 90 degrees.

Back

Right angle

Front

These angles add up to 180 degrees.

Back

Supplementary angles

Front

Classify this triangle by its angles: 90 degrees angle present.

Back

Right triangle

Front

Find the measure of the angle that is complementary to 114 degrees.

Back

66 degrees

Front

In a triangle, how many total degrees are there?

Back

180 degrees

Front

An angle that measures less than 90 degrees.

Back

Acute angle

Front

An angle that measures more than 90 degrees but less than 180 degrees.

Back

Obtuse angle

Front

Angles that are opposite each other when two lines cross.

Back

Vertical angles

Front

Two angles that add up to 90 degrees.

Back

Complementary angles

Front

A triangle with all sides of equal length.

Back

Equilateral triangle