Five of the interior angle of a hexagon are equal if the size of the sisth angle is 155,what is the size of each of the five equal angle

2 answers

The sum of the angles is 720°.

(720 - 155) / 5 = ?
sum of interior angles of a hexagon
= 180(6-2) = 720 , from 180(n-2)

5x + 155 = 720
5x = 564
x = 113°