Solve for Unknown Angles with Variables

Find the m∠D.

• 40

• 108

• 72

• 68

Tags

CCSS.8.G.A.5

Solve for x, then determine which of the following is NOT one of the angle measures in the triangle.

• 95

• 40

• 85

• 45

Tags

CCSS.8.G.A.5

In triangle ABC, the m∠A = (21x - 1)°, the m∠B = (26x + 6)°, and m∠C = (11x + 1)°. Solve for x in order to find the measure of angle B.

• 84°

• 34°

• 62°

• 90°

Tags

CCSS.8.G.A.5

Solve for x.

• x = 118

• x = 31

• x = 23

• x = 62

Tags

CCSS.8.G.A.5

Solve for  y.

• y = 20
• y = 120
• y = 60
• y = 10

Tags

CCSS.8.G.A.5

What is the value of x?

• 22
• 26
• 24
• 23

Tags

CCSS.8.G.A.5

Find the measure of angle 1 if the two lines are parallel.

• 28^o

• 136^o

• 44^o

• 6^o

Tags

CCSS.8.G.A.5

Line r and s are parallel. Solve for x.

• 43

• 37

• 143

• 73

Tags

CCSS.8.G.A.5

Select all the statements that are true.

• m∠1 = m∠5 = m∠8

• m∠8 + m∠6 = m∠5 + m∠3

• m∠1 + m∠7 = 180

• m∠4 = m∠7

• m∠3 = m∠4 = m∠7

Tags

CCSS.8.G.A.5

Find the measure of the angle indicated by the green box.

• 72°

• 100°

• 80°

• 85°

Tags

CCSS.8.G.A.5