Question

Find the value of x. Then find the angle measures of the polygon.

Answer 1

x = 43

Explanation:

Since it says at the bottom that the sum of angle measures is 360° that means that you can dd up all the angles and it will equal 360.

Set up an equation

(3x) + (2x) + (x + 12) + (2x + 4) = 360

Then add them all together.

5x + (3x + 16) = 360

8x + 16 = 360

Subtract 16 from both sides to get 8x alone.

8x = 344

Then divide both sides by 8 to get x

`(8x)/(8) = (344)/(8)`