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Please help! Marie made a model (shown below) of the square pyramid she plans to build when she grows up. Find the surface area of the model please!
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4 votes
Please help!

Marie made a model (shown below) of the square pyramid she plans to build when she grows up.

Find the surface area of the model please!

Please help! Marie made a model (shown below) of the square pyramid she plans to build-example-1
User Adrien Joly
by
8.2k points

2 Answers

6 votes
8 x 5 = 40 but since it is a triangle, you have to divide by two which is 20
20 x 4(because there are 4 triangles)
= 80
the surface area of the square pyramid is 80
User DGoran
by
8.0k points
5 votes
Base: 8x8=64
Sides: 8x5=40 40 divide by 2= 20
20x4=80
80+64=144m^2
User Wlangstroth
by
8.3k points
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