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Find the surface area of the composite solid.
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Find the surface area of the composite solid.

Find the surface area of the composite solid.-example-1
User David Cummins
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2 Answers

6 votes

Answer:

the answer is attached to the picture

Find the surface area of the composite solid.-example-1
User Usoban
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3.7k points
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Answer:

281 ft²

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

User Aruis
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