Understanding Exterior Angles and Supplementary Angles

A triangle has one exterior angle measuring 120 degrees. If one of the interior angles is 40 degrees, what is the measure of the other interior angle?

• 100 degrees

• 60 degrees

• 90 degrees

• 80 degrees

Tags

CCSS.8.G.A.5

In a triangle, the exterior angle is 150 degrees. If one of the interior angles is 70 degrees, what is the measure of the other interior angle?

• 80 degrees

• 60 degrees

• 100 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

A park is designed in the shape of a triangle. One exterior angle of the park measures 110 degrees. If one of the interior angles is 50 degrees, what is the measure of the third angle?

• 70 degrees

• 80 degrees

• 90 degrees

• 60 degrees

Tags

CCSS.8.G.A.5

During a construction project, an exterior angle of a triangular support beam measures 135 degrees. If one of the interior angles is 45 degrees, what is the measure of the other interior angle?

• 90 degrees

• 75 degrees

• 60 degrees

• 120 degrees

Tags

CCSS.8.G.A.5

A triangular garden has an exterior angle of 160 degrees. If one of the interior angles is 80 degrees, what is the measure of the remaining interior angle?

• 60 degrees

• 100 degrees

• 80 degrees

• 120 degrees

Tags

CCSS.8.G.A.5

In a triangle, the exterior angle is equal to 3 times one of the interior angles. If the interior angle measures 30 degrees, what is the measure of the exterior angle?

• 90 degrees

• 45 degrees

• 120 degrees

• 60 degrees

Tags

CCSS.8.G.A.5

A triangular sign has an exterior angle measuring 90 degrees. If one of the interior angles is 30 degrees, what is the measure of the other interior angle?

• 45 degrees

• 60 degrees

• 120 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

A triangle has an exterior angle of 140 degrees. If one of the interior angles is 60 degrees, what is the measure of the other interior angle?

• 100 degrees

• 70 degrees

• 80 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

In a triangle, the exterior angle is 120 degrees. If one of the interior angles is 50 degrees, what is the measure of the remaining interior angle?

• 90 degrees

• 80 degrees

• 60 degrees

• 70 degrees

Tags

CCSS.8.G.A.5

A triangular piece of land has an exterior angle of 100 degrees. If one of the interior angles is 40 degrees, what is the measure of the other interior angle?

• 50 degrees

• 70 degrees

• 80 degrees

• 60 degrees

Tags

CCSS.8.G.A.5