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telo118 [61]
3 years ago
5

What is the surface area of the regular pyramid below?

Mathematics
2 answers:
Artist 52 [7]3 years ago
7 0

Answer:

304 sq units on Apex


AnnyKZ [126]3 years ago
4 0
The total surface area of a regular pyramid is the sum of the areas of its lateral faces and its base.
The area of the faces = four times the area of the triangle
                                   = 4 * ( 0.5 * height * base )
                                   = 4 * ( 0.5 * 8 * 15 ) = 240
The area of the base = area of a square
                                  = 8 * 8 = 64 

So, the total area = 240 + 64 = 304 sq. units

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If the length of a rectangle is 3m longer than its width, then:
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Is the area really 154^2? Or is it 154m^2? If yes, then:
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154=(W^2+3W)
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This means either (W-11) or (W+14) is equal to zero so:
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154=154
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