A- 416 B- 72 C- 36 D- 208

Mathematics

1 answer:

Kobotan [32]2 years ago

5 0

Answer: D

Step-by-step explanation:

The area of each of the triangles is (1/2)(9)(8).

So the area of all 4 triangles combined is (2)(9)(8)=144.

The area of the square is 8^2 = 64

So the total surface area is 144 + 64 = 208

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