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3 years ago

Can someone help me please?

Mathematics

2 answers:

Elodia [21]3 years ago

4 0

The height should be around 9.19 or 9.2 if you round it up.
(if you need an explanation as to why i would be happy to help as well!)

Ivahew [28]3 years ago

3 0

Answer: The height is roughly 9 yards

------------------------------------

Explanation:

We'll use this formula
S = 2*pi*r^2 + 2*pi*r*h
which is the surface area of a cylinder

We're given
S = 2775.76
r = 17
The unknown is the height h, which we'll solve for
We'll use the approximation pi = 3.14

S = 2*pi*r^2 + 2*pi*r*h
2775.76 = 2*3.14*17^2 + 2*3.14*17*h
2775.76 = 1814.92 + 106.76*h
1814.92 + 106.76*h = 2775.76
106.76*h = 2775.76 - 1814.92
106.76*h = 960.84
h = 960.84/106.76
h = 9

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