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radius = 6.3mm.we are learning something about area of circle.

Sagot :

We have that the area of the circle with a radius of 6.3mm is the following:

[tex]A=\pi(6.3)^2\Rightarrow A=\pi(\frac{32969}{100})\Rightarrow A=39.69\pi[/tex]

The area is a