Using Equations to Solve for Unknown Angles

For the diagram decide which equation you agree with.

• 50 + 20 = x

• 50 - 20 = x

• x + 20 = 50

• x + 50 = 20

Tags

CCSS.7.G.B.5

Use the equation from the previous problem to solve for x.

• 30

• 20

• 70

• -30

Tags

CCSS.7.G.B.5

For the diagram decide which equation you agree with.

• x + 180 = 133

• x + 133 = 180

• x + 133 = 90

• x = 133

Tags

CCSS.7.G.B.5

Use the equation from the previous problem to solve for x.

• 133

• 57

• 47

• 43

Tags

CCSS.7.G.B.5

For the diagram decide which equation you agree with.

• x - 73 = 90

• x + 73 = 180

• x + 73 = 90

• 90 + 73 = x

Tags

CCSS.7.G.B.5

Use the equation from the previous problem to solve for x.

• 17

• 27

• 107

• 73

Tags

CCSS.7.G.B.5

For the diagram decide which equation you agree with.

• a² + 90 = 180

• 90 - 2a = 180

• a + 90 = 180

• 2a + 90 = 180

Tags

CCSS.7.G.B.5

Use the equation from the previous problem to solve for a.

• 30

• 45

• 90

• 55

Tags

CCSS.7.G.B.5