Question

What is the value of z?

Answer 1

z=58

Explanation:

Sum of interior angles of a n-gon = (n-2) 180

for this 7-gon (heptagon) (7-2)(180) = 900

so all of the angles added togehter = 900

z+50 + 2z + 2z+23 + 3z-37 + 2z+31 + 113 + 140 = 900

z = 58