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grandymaker [24]
3 years ago
9

Please finish this equation and write the answer​

Mathematics
1 answer:
olga55 [171]3 years ago
7 0

Given:

The equation is:

2540=\dfrac{22}{7}r^2(20)

To find:

The solution for the given equation.

Solution:

We have,

2540=\dfrac{22}{7}r^2(20)

It can be written as:

\dfrac{2540\times 7}{22\times 20}=r^2

\dfrac{17780}{440}=r^2

\dfrac{889}{22}=r^2

Taking square root on both sides, we get

\sqrt{\dfrac{889}{22}}=r               [Radius cannot be negative]

r=6.3568145

r\approx 6.36

Therefore, the value of r is about 6.36 cm.

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