Answer:
56.
Step-by-step explanation:
Formula for solving a triangle is 1/2 * base * height.
The sum of the angles of a quadrilateral is 360°.

Given that x=30, the measure of ∠C is
∠C = (5/2)×30 +40 = 115
The appropriate choice is ...
D) 115°
You don't have a picture we can help with
4.5x5=22.5
not sure if this is right, but hope it helps