Question

Find the area of a circle with a diameter of 16. Either enter an exact answer in terms of pi or use 3.14 and enter your answer as a decimal.

Answer 1

Answer:

The area of a cicle is $64\pi$ square units

Area of a circle $A=64\pi$ square units in terms of $\pi$

Step-by-step explanation:

Given that the diameter of a circle is 16

That is d=16

Therefore radius $r=\frac{d}{2}$

$r=\frac{16}{2}$

$=8$

Therefore radius r=8

Now to find the area of a circle :

Area of a circle$A=\pi r^2$ square units

Substitute r=8 we get

Area of a circle$A=\pi 8^2$

$=64\pi$

Therefore the area of a cicle is $64\pi$square units

Area of a circle$A=64\pi$square units in terms of $\pi$