Question

The Circumference Of A Circle In 132 Meters Find Its Area
​

Answer 1

Let the radius of the circle is r cm

Perimeter of a circle =2πr=132

⇒2×7/22×r=132

⇒r=22×21/32×7

⇒r=21 cm

Area of the circle =πr2

⇒=7/22×21×21

⇒=1386 cm2

Please mark me as brainlist.

Answer 2

Answer:

Area of circle is 1386.05 ${m}^{2}$

Step-by-step explanation:

Given -

Circumference of circle is 132 m

To find -

The area of circle

Solution -

As we know that,

Circumference of circle = $2 \times pi \times r$

Where, r is the radius of circle.

Put the given values in these formula we get

$132 = 2\pi \times r$

$\frac{132}{2\pi} = r$

$\frac{66}{\pi} = r$

The value of π is 3.14 .

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

$r = 21.01$

So,

Radius (r) is 21.01 m.

Area of circle = $\pi {r}^{2}$

Put the value of r we get

Area of circle = $\pi \times {21.01}^{2}$

Square means multiply the given values with itself twice.

${21.01}^{2} = 21.01 \times 21.01 = 441.42$

Square of 21.01 is 441.42

Area of circle = $\pi \times 441.42$

The value of π is 3.14.

Area of circle = $3.14 \times 441.42$

Area of circle = $1386.05$

Hence,

Area of circle is 1386.05 ${m}^{2}$