Question

The circumference of a circle is 66 cm. Find the approximate

area of square if the radius of circle is two times of the side of a

square.

Answer 1

2πr=66
r=66/2π
r=10.50
side of square=2(radius of circle)
therefore side of square is 21cm
ar of square is side*side
therefore ar of square is 21*21
which is equal to 441cm^2

Answer 2

Answer:

Area of the square is 441 centimeter square.

Step-by-step explanation:

Given : The circumference of a circle is 66 cm.

To find : The approximate area of square if the radius of circle is two times of the side of a  square ?

Solution :

The circumference of the circle is 66 cm.

$C=2\pi r$

$66=2\pi r$

$r=\frac{66}{2\times 3.14}$

$r=10.50cm$

We have given,

The radius of circle is two times of the side of a square.

i.e. $s=2r$

Substitute the value of r,

$s=2(10.50)$

$s=21cm$

Area of the square is $A=s^2$

$A=21^2$

$A=441cm^2$

Therefore, Area of the square is 441 centimeter square.