Unit 4: Angles Review

A right angle is ______.

• 45 degrees

• 90 degrees

• 180 degrees

• 360 degrees

The shape made by 2 straight lines joining at one point is called _______.

• angle

• square

• triangle

• circle

The unit to measure angles is ________

• cm

• kg

• degrees

• degrees Celsius

A _______ is a tool to measure angles.

• ruler

• scale

• measuring cup

• protractor

An angle less than a right angle is called _______.

• obtuse

• right

• acute

• relfex

An angle that is more than 90 degrees but less than 180 degrees is called ______.

• obtuse

• acute

• right

• reflex

One revolution (full rotation) has a measure of ________.

• 180 degrees

• 90 degrees

• 360 degrees

• 1 degree

A straight angle has a measure of _______.

• 90 degrees

• 360 degrees

• 180 degrees

• 45 degrees

What is the measure of this angle?

Use your protractor.

• 70°

• 110°

• 60°

• 80°

What is the measure of the angle?

Use your protractor.

• 70°

• 80°

• 120°

• 110°