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well for the rectangular prism its: H x W, H x L, L x W

L- length

W- Width

H- heigth

for a cylinder: 2*pi*R square + 2*pi*R*H

Also for a cylinder: Pi*Diameter*Hieght+2*Radius*radius*pi

okay square means their is a little two next to the number and it mean you have to double (multiply the same number twice like 5*5)the radius(R)

Okay get it good bye.

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12y ago
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Big Chungus

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4y ago

The surface area is the sum of the areas of all side of the shape.

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10y ago

surface area abnbvghvabba hbhxh

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Q: What is the formula to find the surface area?
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