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Veseljchak [2.6K]
3 years ago
13

I need to find the circumference and area of a circle with a diameter of 20 cm

Mathematics
1 answer:
slega [8]3 years ago
4 0
The diameter is 20 so the radius is 10.
A=<span>πr^2
A=</span>π10^2
A=100π

C=2πr
C=2π10
C=20π
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Let

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Step 2

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Let

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we know that

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so

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Step 3

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we know that

the equation of the line in the form point-slope is equal to

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3y=5x-15

5x-3y=15

therefore

the answer is

the equation of the line that is perpendicular to the given line is the equation 5x-3y=15

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