Angles Using Equations

What is the measurement of angle x?

• 180 degrees

• 50 degrees

• 130 degrees

Solve for x.

• x=104

• x=76

• x=38

What is the value of x?

• 90 degrees

• 45 degrees

• 30 degrees

Roger wants to draw a picture that has a pair of complementary angles. Roger wants one of the angles to be 20 degrees more than the other angle. What is the measure of each angle?

• 35, 55

• 30, 60

• 25, 65

Look at the diagram.

Which equation can be used to solve for x?

​ (a)  

• 2x + 8 = 86

• 10x = 86

• 2z + 94 = 180

• 2x + 94 = 90

Answer explanation

Tags

7.11.C

Look at the diagram.

Which equation can be used to solve for x?​ (a)  

• 7x+18=67

• 7x+28=67

• 30x-5=67

• 30x+5=67

Tags

7.11.C

Look at the diagram.

Which equation can be used to solve for x?​ (a)  

• 3x+36=90

• 39x=90

• 3x+36=180

• 39x=180

Tags

7.11.C

Look at the diagram.

Which equation can be used to solve for x? ​ (a)  

• 5x+53=128

• 22x-36=128

• 22x+36=128

• 5x-19=128

Tags

7.11.C

Which equation can be used to solve for x?​ (a)  

• 7x+18=67

• 7x+28=67

• 30x-5=67

• 30x+5=67

Tags

7.11.C

Solve for x.

Mathematical Equivalence

ON