Question

Using the net below, find the surface area

of the pyramid.
7 in.
3 in.
n.3 in.
Surface Area
[?] in.2
I
Enter
Answer

Answer 1

51 in²

Explanation:

formula of a triangle:
`(1)/(2)`bh

the base is 3 and the height is 7

1/2(3)(7)

1/2(21)=

10.5

Since there are 4 of these same triangles, we multiply by 4.

10.5 · 4 = 42 in²

formula of a square: bh

base is 3 and height is 3

(3)(3) =

9 in²

add them together and you get your answer of 51 in²