Given:
Interior angles of a polygon.
7x°, 2x°, 8x°, 60°, 10x°, 8x° and 35°.
To find:
The value of x.
Solution:
Number of sides = 7
Using sum of interior angles of a polygon formula:


Adding like terms.

Substitute n = 7.



Subtract 95° from both sides.


Divide by 35° on both sides.

x = 23
The value of x is 23.