Question

What is the surface area of the pyramid shown? 7260 square feet 2420 square feet 1144 square feet 1804 square feet 

          What is the surface area of the pyramid shown? 7260 square feet 2420 square feet 1144 square feet 1804 square feet

Added by Lauren M.

Geometry A Common Core Curriculum
Geometry A Common Core Curriculum
Ron Larson, Laurie Boswell 1st Edition
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What is the surface area of the pyramid shown? 7260 square feet 2420 square feet 1144 square feet 1804 square feet
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Transcript

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00:01 Okay, so i see that you need help with this question and it says, what is the total surface area of the pyramid in square feet? so the pyramid is a square pyramid and it's 12 feet on all sides.
00:12 And then there's four triangles that are eight feet tall.
00:18 And so there's four of them and they're all the same dimensions.
00:23 It does give you the slant height of 10 feet, but we don't need that in order to find the surface area of the pyramid.
00:31 So to find the surface area of the pyramid, you're going to find the area of the square and you're going to add that to the area of the four of the triangles.
00:41 So that's base times height divided by two...
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