Question

Ignore the blue thing btw

Marie made a model (shown below) of the square pyramid she plans to build when she grows up.
8 m
12 m
12 m
Find the surface area of the model.
m2

Answer 1

It's 336 (I did it on khan and it worked)

Explanation:

Answer 2

336m^2

Explanation:

The pyramid can be seen as four identical triangles and a square (the base)

Area of four triangles: 1/2 x 12 x 8 x 4 = 192m^2

Area of square: 12 x 12 = 144m^2

Area of pyramid: 144 + 192 = 336m^2