Question

Find the value of x. Help!

Answer 1

The sum of interior angles = 360
So we will ad them and the sum of them will be =360 and then solve for X

Answer 2

x =50

Explanation:

sum of angles of a quadrilateral is 360

therefore

2x-12 + 3x + 2 + x - 10 + x + 30 = 360

7x + 10 = 360

7x = 350

x = 50

to double check

angles are : 88 + 152 + 40 + 80