Question

What is the value of x?

Answer 1

Answer:

x = 14

Step-by-step explanation:

Measure of angle of regular polygon is

$\frac{180(n-2)}{n}$

There is regular decagon on the picture, n = 10

$\frac{180(10-2)}{10} = 144$ degree

10x + 4 = 144

10x = 140

x = 14