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Radda [10]
3 years ago
11

Find the surface area. Picture. Plz show work thx

Mathematics
1 answer:
solong [7]3 years ago
3 0
You need to break this into pieces. The 2 ends are triangles, so use the triangle formula: 1/2bh

A = 1/2(7)(8)
A = 1/2(56)
A = 28
Then multiply by 2 since there are two ends: 2 * 28 = 56 square inches.

Next is the 3 sides. They are each 16" by 7".

A = 16 * 7
A = 112 square inches.
Then multiply by 3 since there are 3 of them: 112 * 3 = 336

56 + 336 = 392 square inches of surface area.
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