Triangle Sum and Exterior Angle Theorem

Find the measure of the indicated angle. HINT!!!! USE TRIANGLE SUM THEOREM angle A + angle B + angle C =180 DEGREES.

• 26

• 36

• 85

• 144

Answer explanation

Find the measure of the indicated angle.

HINT!!! USE EXTERIOR ANGLE THEOREM ANGLE 1 INSIDE + ANGLE 2 INSIDE = EXTERIOR ANGLE OUTSIDE.

• 145

• 113

• 102

• 78

Answer explanation

Find the measure of the indicated angle.

Find the measure of each angle indicated.

How much is the value of X?

• 45

• 60

• 90

• 15

Solve for x.

• 16

• 11

• 50

• 6

Solve for x

• 3

• 4

• 2

• 1

Set up an equation to find x.

• 42 + 8x = 2 + 12x

• 2 + 12x + 42 = 8x

• 42 + 8x + 2 + 12x = 180

• 42 + 8x = 180