Angles and Triangles

Front

What type of angle is always 90°?

Back

Right angle

Front

True or False: an acute angle is LESS than 90°

Back

True

Front

How Many Degrees in a straight angle?

Back

180°

Front

True or False: An angle that measures 130° is acute

Back

False

Front

Which angle is obtuse? 50°, 90°, 70°, or 170°?

Back

170°

Front

What is an acute angle?

Back

An angle that measures less than 90°.

Front

What is an obtuse angle?

Back

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

Front

What is a straight angle?

Back

An angle that measures exactly 180°.

Front

What is a reflex angle?

Back

An angle that measures more than 180° but less than 360°.

Front

What do you call an angle that measures exactly 0°?

Back

Zero angle