Question

Need help with this immediately!!!

Answer 1

x = 127°

Explanation:

The sum of the interior angles of an n-sided polygon is (n - 2)×180°. For a 5-sided polygon (pentagon), the sum is 540°. From the diagram,

90 + 90 + 90 + 143 + x = 540

Solving for x,

x = 127°