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mylen [45]
3 years ago
9

The formula for the surface area of a cylinder is A=2πr(r+h).Find h if A=80π and r=5.

Mathematics
1 answer:
lesya [120]3 years ago
3 0
A=2<span>πr(r+h)
</span>80π=<span>2π(5)(5+h)
</span>80π=10π(5+h)
80π=50π + 10πh
30π=10πh
3=h
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