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21-05-2020
Mathematics

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Find the surface area of the composite solid.

Find the surface area of the composite solid class=

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jp998808 jp998808

21-05-2020

Answer:

281

Step-by-step explanation:

I had it on khan academy

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amna04352 amna04352

23-05-2020

Answer:

281 ft²

Step-by-step explanation:

Cuboid + lateral surface area of the pyramid - square base

2[(4×12)+(4×5)+(12×5)] + 4[½×5×(12-7)] - 5²

2(48+20+60) + 4(12.5) - 25

2(128) + 50 - 25

256 + 25

281 ft²

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