Question

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Nan’s art sculpture is a pyramid. She will cover all the faces with gems, except the base of the pyramid.

What is the surface area of the part of the pyramid that will be covered in gems?
A. 36 square meters
B. 54 square meters
C. 72 square meters
D. 81 square meters

Answer 1

C. 72

Explanation:

Triangular Area: 1/2 (b) (h)

12x3=36

36/2=18

18x4=72

I also did the test. Have a great day/night! <3

Answer 2

`2 * 3 * 12 \\ 72 {m}^(2)`