Question

The area of a circle is 201cm² . what is the diameter ?

Answer 1

The answer is 16 cm approx.

Diameter= 2$\sqrt{a/pi}$

=>2$\sqrt{201 / 22/7}$

=>2$\sqrt{201*7/22}$

=>15.997.......

=> 16 approx

Hope this helps you!!

Answer 2

Answer:

The diameter of the circle  is 16

Step-by-step explanation:

$\pi = 3.14$

Area = $\pi r^{2}$ you will have to use this formula to find the radius

$\pi r^{2} = 201$   =   $3.14r^{2}=201$ (divide 3.14 into both sides)

$\frac{3.14r^2}{3.14} = \frac{201}{3.14}$   cross out 3.14 leaves you with $r^2$  and divide 201/3.14= 64.01

$r^2 = 64.01\\r = \sqrt{64.01}\\r = 8$  square root 64.01 which equals 8

Diameter = $2r$    2(8) = 16

To check answer use Area formula $\pi (8)^{2}$ = 201. 0619298