Question

Help please thank you

Answer 1

138

Explanation:

the total angle sum is 720 so the equation is

720-(85+85+152+125+135)

this becomes 720-582

and the answer is 138

Answer 2

D 138

Explanation:

To find the sum of the interior angles of a polygon, use the formula

sum = (n-2)*180 where n is the number of sides

This is a six sided figure, so n = 6

sum = (6-2) * 180 = 4*180 = 720

Add up all the interior angles

720 = 85+152+x+85+135+125

Combine like terms

720 =582+x

Subtract 582 from each side

720-582 = 582+x-582

138 = x