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Bad White [126]
3 years ago
12

The perimeter of the rectangle below is 84 cm. Write an equation and find the length and

Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0

Answer:

w + w + L + L= 84 or 2w + 2L= 84

Step-by-step explanation:

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Solid 1:

T.A. = 2(wl + hl + hw)

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Solid 2:

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Solid 3:

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T.A. = (2 * pi * 2.5^2) + (2 * pi * 2.5 * 3.5)

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V = pi * 6.25 * 3.5

V = pi * 21.88

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M = 0.003 * 68.72

M = $0.21

Solid 4:

T.A. = pi * r^2 + pi * r * sqr(r^2 + h^2)

T.A. = pi * 4^2 + pi * 4 * sqr(4^2 + 6^2)

T.A. = pi * 16 + pi * 4 * sqr(16 + 36)

T.A. = 50.26 + 12.56 * sqr(52)

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T.A. = 140.9m^2

V = 1/3 * pi * r^2 * h

V = 1/3 * pi * 4^2 * 6

V = 1/3 * pi * 16 * 6

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T.A. = 4 * pi * r^2

T.A. = 4 * pi * 2.6^2

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Of the five shapes, only the rectangular prism, the square pyramid, and the cylinder held between 60 and 70 cubic inches. The square pyramid was the most cost efficient, holding a price of $0.18. A rectangular prism would not be the most efficient shape cost wise, however it would be sufficient to hold the materials. I think I would recommend the rectangular prism for this project, because it is the second most cost efficient and holds a greater volume for use. I think God gave Moses the exact plans needed to perfectly fit all his animals. I think he wanted to prove to Moses his power and knowledge by providing the exact amount needed. In this project I took the measurements and I used them to discover which was best suited to serve the purpose needed, but God already knew and used it as a lesson in faith for Moses.

Step-by-step explanation:

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38%

:3

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3 years ago
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