Answer: D. 35 in
Explanation:
To find the perimeter of a composite shape you have to add all the sides together.
we know that we have
- 16in
- 5in
- 5in
(for the rectangle)
I used the Pythagorean theorem to find the hypotenuse of the triangles (the outer sides)
6^2+b^2=8^2
b = 5.3 (when rounded to the nearest tenth)
so then we add all the sides together which is now
16+5+5+5.3+5.3= 36.6
The closest to this was answer D aka 35 in
(hope this helps, and I'm sorry if I was wrong)