Finding Exterior Angles of Triangles

If one angle in a triangle is 26 degrees and another is 90 degrees, what is the measure of the third angle?

• 84 degrees

• 74 degrees

• 64 degrees

• 54 degrees

Tags

CCSS.8.G.A.5

What is the sum of all interior angles in a triangle?

• 360 degrees

• 270 degrees

• 180 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

What do we call the angle formed outside a triangle when one side is extended?

• Interior angle

• Remote angle

• Exterior angle

• Supplementary angle

Tags

CCSS.8.G.A.5

Which angles are referred to as remote interior angles?

• Angles adjacent to the exterior angle

• Angles opposite to the exterior angle

• Angles forming a straight line

• Angles inside the triangle

Tags

CCSS.8.G.A.5

What is the relationship between an exterior angle and the remote interior angles?

• They are supplementary

• They form a right angle

• They are equal

• The exterior angle is the sum of the remote interior angles

Tags

CCSS.8.G.A.5

If the remote interior angles are 68 degrees and 42 degrees, what is the measure of the exterior angle?

• 100 degrees

• 130 degrees

• 110 degrees

• 120 degrees

Tags

CCSS.8.G.A.5

If an exterior angle is 110 degrees, what is the measure of the adjacent interior angle?

• 60 degrees

• 70 degrees

• 90 degrees

• 80 degrees

Tags

CCSS.8.G.A.5

Given the equation 7x + 7 = 4x + 4 + 4x - 9, what is the value of x?

• 10

• 11

• 12

• 13

If x = 12, what is the measure of the exterior angle 7x + 7?

• 84 degrees

• 91 degrees

• 105 degrees

• 98 degrees

Tags

CCSS.8.G.A.5

If the exterior angle is 91 degrees, what is the measure of the adjacent interior angle?

• 79 degrees

• 109 degrees

• 89 degrees

• 99 degrees

Tags

CCSS.8.G.A.5