Answer:
Step-by-step explanation:
the triangle with 9 as a side is a 45,45, 90 triangle. so there for x and 9 are congruent. Thus. x=9
In triangle the sum of the angles =180,and we have angle=124 so,180-124=56.
X=4
4w +8. C.
It’s 4 * width for perimeter and two of the sides are longer by 4in so 2*4=8
