Question

The net of a square pyramid is shown below. What is the surface area of the pyramid?

Answer 1

192 cm^2

Explanation:

base = 8 x 8 = 64

1 triangle = 1/2 x 8 x 8 = 32

32 x 4 = 128

128+64 = 192 cm^2

Answer 2

D.
`192 cm^2`

Explanation:

The net of the pyramid is made up of 1 square base and 4 triangles

Surface area of the pyramid = area of square + 4(area of square)

`S.A = (s^2)+ 4((1)/(2)bh)`

Where,

s = 8

b = 8

h = 8

`S.A = (8^2)+ 4((1)/(2)*8*8)`

`S.A = 64+ 4(32)`

`S.A = 64+ 128`

`S.A = 192 cm^2`