Question

Find the value of x and the measure of the angle labeled 3xº.

72°
3x
42°
30°

I really need help!!!!!!!

Answer 1

B

Explanation:

Set up an equation:

30 = 3x

Divide both sides by 3:

10 = x

x = 10 degrees

Plug the value of x into the angle:

3 × 10

30 degrees

Answer 2

x=10 3x= 30

Explanation:

3x = 30 since the angles are vertical angles

3x/3 = 30/3

x = 10