Calculating Missing Angles

What is the measure of the missing angle in a triangle if the other two angles are 30° and 60°?

• 90°

• 45°

• 120°

• 180°

Tags

CCSS.8.G.A.5

If one angle in a triangle measures 80° and the other measures 50°, what is the measure of the missing angle?

• 30°

• 90°

• 120°

• 50°

Tags

CCSS.8.G.A.5

In a triangle, if one angle measures 45° and the other measures 75°, what is the measure of the missing angle?

• 90°

• 60°

• 120°

• 30°

Tags

CCSS.8.G.A.5

If the angles in a quadrilateral measure 90°, 110°, and 70°, what is the measure of the missing angle?

• 180°

• 90°

• 45°

• 120°

Tags

CCSS.HSG.C.A.3

What is the measure of the missing angle in a quadrilateral if the other three angles measure 80°, 100°, and 120°?

• 150

• 60

• 90

• 200

Tags

CCSS.HSG.C.A.3

In a quadrilateral, if one angle measures 60° and the other measures 100°, what is the measure of the missing angle?

• 90°

• 100°

• 120°

• 60°

Tags

CCSS.HSG.C.A.3

If one angle in a quadrilateral measures 120° and the other measures 80°, what is the measure of the missing angle?

• 90°

• 140°

• 160°

• 200°

Tags

CCSS.HSG.C.A.3

In a quadrilateral, if one angle measures 50° and the other measures 70°, what is the measure of the missing angle?

• 120

• 230

• 180

• 90

Tags

CCSS.HSG.C.A.3

If the angles in a quadrilateral measure 100°, 110°, and 80°, what is the measure of the missing angle?

• 90

• 120

• 150

• 70

Tags

CCSS.HSG.C.A.3

What is the measure of the missing angle in a quadrilateral if the other three angles measure 60°, 80°, and 100°?

• 200°

• 90°

• 150°

• 120°

Tags

CCSS.HSG.C.A.3