MATH QUIZ #5 ANGLES , TRIANGLES AND QUADRILATERALS

Measure and classify angles.

Are these angles acute, right, obtuse, or straight?

• right angles

• obtuse angles

• acute angles

• straight angles

Is this angle acute, right, obtuse, or straight?

• acute

• right

• obtuse

• straight

What is the measurement of this angle?

• 110

• 75

• 100

• 115

Estimate the measure of this angle

• 30

• 90

• 60

• 100

Estimate the measure of this angle.

• 90

• 60

• 100

• 45

Estimate the measure of this angle.

• 90

• 60

• 120

• 160

Complementary angles add up to 90 and supplementary angles add up to 180.

The measure of an angle is 73°. What is the measure of its supplementary angle?

• 90

• 17

• 107

• 180

Complementary angles add up to 90 and supplementary angles add up to 180.

The measure of an angle is 38°. What is the measure of its complementary angle?

• 52

• 180

• 50

• 90

Find missing angles in triangles.

What is the measure of the missing angle?

• 80

• 180

• 70

• 65

Find missing angles in triangles

What is the measure of the missing angle?

• 20

• 25

• 30

• 40