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Dominik [7]
3 years ago
14

What is the surface area of the regular pyramid given below?

Mathematics
2 answers:
Sophie [7]3 years ago
8 0
To find the surface area of any shape, you have to find the area of each side on the shape and then add them all up together:
Base: 8*8 = 64
Height(the triangle part) : 8*9 = 72
72/2 = 36 (Because equation to find area of a triangle is b*h/2)
So there are 4 of those triangle sides so you would do: 36+36+36+36 = 144

Then you add both sides together (base and height) : 64 + 144 = 208
VARVARA [1.3K]3 years ago
5 0
Each trianglar side has an area: (1/2)*8*9=36
the base is a square with an area of 8*8=64
so the total surface area is 36+36+36+36+64=208
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