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satela [25.4K]
4 years ago
5

Find the geometric mean of 9 and 20

Mathematics
1 answer:
Katyanochek1 [597]4 years ago
5 0
Geometric mean is the square root of the product of the two numbers:

9(20)=180

 \sqrt{180} = 13.416407
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tatiyna

Answer:

2644.415 feet spuared

Step-by-step explanation:

I think the attached photo is your full question, and my answer:

We need to find:

- the area of the  pool = πr^{2} = 3.14* 20.5^{2} = 1319.585 feet spuared.

- The area of the triangular fence = 1/2* 84*92 = 3964 feet spuared

So, the area of the backyard which is not covered by the pool is:

<em>The area of the triangular fence - the area of the  pool</em>

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Hope it will find you well.

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11.a. RHOM is a Quadrilateral with four equal sides
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