Angle Relationships & Equations

Determine the value of g.

• 360

• 180

• 90

• 30

Complementary angles are angles that add up to ___________. 

• 180 degrees

• 90 degrees

• 360 degrees

• 100 degrees

Find the value of A.

Enter your answer as a whole number.

Answer explanation

Supplementary angles = 180˚

Find the value of angle A in the set of supplementary angles.

Answer explanation

Supplementary angles = 180˚

Find the value of angle ∠A

Answer explanation

Supplementary angles = 180˚

Find the value of 'A'

Answer explanation

Complementary angles = 90˚

Find the value of angle A.

Answer explanation

Complementary angles = 90˚

Find the value of angle A.

Answer explanation

Supplementary angles = 180˚

Vertical angles are congruent

Find the value of b.

Answer explanation

Set up an equation.

-2b+60 = 3b + 45

Add 2b on both sides

60 = 5b + 45

Isolate the variable and solve the two-step equation for a.

Find the value of b.

Answer explanation

Set up an equation.

160 - 7b = 3b + 130

Add 7b on both sides

160 = 10b + 130

Solve the two-step equation. Isolate the variable by using inverse operations.

Subtract 130 on both sides.

Then divide both sides by 10