Question

A pentagon has angle measures of 12x°, 7x°, 16x°, 9xº, and 10x°. Find the
value of x.

Answer 1

10

Explanation:

one interior angle in a pentagon is 108^o.

5 interior angles are 540^o.

If we add 12+7+16+9+10, we get 54x=540^o

That means x=10