Question

GEOMETRY 100 POINTS

Find the value of x​

Answer 1

Explanation:

Since it's five (5) sided it is a pentagon.

First find the sum of the interior angle of a Pentagon .

S = ( n -2 ) × 180°

n represent the number of sides

S = ( 5 -2 ) × 180°

S = 3×180°

S = 540°

5x+2+ 10x-3 +7x-11 +8x-19 + 13x -31 = 540°

43x - 62 = 540°

43x = 540° + 62

43x = 602°

x = 14°

Answer : 14°