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galben [10]
3 years ago
9

Find the surface area of the cone, use 3.14 for pi

Mathematics
2 answers:
seraphim [82]3 years ago
6 0
To find the area of a cone you do A=πr(r+\sqrt{h^2 + r^2}
Which give you the answer of 151.58
DIA [1.3K]3 years ago
3 0
Hey,
The answer is 138 inches².

Cheers,
Izzy
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