4 years ago

I need help with this!

Mathematics

1 answer:

Leviafan [203]4 years ago

7 0

Solution

f(r) = 3.14 $r^{2}$

Now we have to find the area of the circle when the radius (r) = 4.

Plug in r = 4 in f(r) to get the area of the circle.

f(4) = 3.14 $(4^{2} )$

f(4) = 3.14 * 4 * 4

f(4) = 3.14 *16

f(4) = 50.24

The answer is C. 50.24

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