Classifying Angles by Degree Measurement

This is what kind of angle?

• obtuse

• right

• straight

• acute

What is the value of x?

• 22

• 26

• 24

• 23

• 65^o
• 30^o
• 115^o
• 180^o

The measure of ∠Z is (4x – 5)°. If x = 7, find the measure of <Z, then classify the angle.​ ​ (a)  

• 23 degrees, acute

• 23 degrees, straight

• 80 degrees, right

• 18 degrees, acute

Find the measure of x.

Mathematical Equivalence

ON

This is what kind of angle?

• right

• acute

• obtuse

• straight

• 65^o
• 115^o
• 30^o
• 90^o

Find the measure of the missing angle.

• 47

• 57

• 53

• 133

Find the measure of the missing angle.

• 139°

• 66°

• 138°

• 116°