Question

Help me plz!!!! For number 17

Answer 1

x=40

Explanation:

So, since the figure has 4 sides, we know that the sum of the interior angles is 360. To check: (n-2)*180=(4-2)*180=28180=360.

That means x equals 360 minus the sum of the other three angles.

100+120+100=320

360-320=40

x=40 degrees

Answer 2

x=40

Explanation:

x + 320 = 360

-320 -320

x = 40