Solve for x. Show your work.

Quadrilateral A, B, C, D, showing angle measures as follows: Angle A is one hundred fifty-five degrees, Angle B is eighty degrees, Angle C is seventy degrees, and Angle D is the quantity 5 times x degrees.

Question

Solve for x. Show your work. 

Quadrilateral A, B, C, D, showing angle measures as follows: Angle A is one hundred fifty-five degrees, Angle B is eighty degrees, Angle C is seventy degrees, and Angle D is the quantity 5 times x degrees.

anonymous · Answer

pleaseee help

anonymous · Answer

It's okay.. don't panic! Do you know the equation for the sum of the interior angles of a polygon?

anonymous · Answer

no i dont sorry :(

anonymous · Answer

That's okay. It's..$$180(n-2)$$What you do with this is insert the number of sides the shape has as n and it will give you the total of all of the interior angles.|dw:1407357601139:dw|