Question

find the circumference of circle whose area is 301.84cm2​

Answer 1

Given : Area Is 301.84 cm^2

Find : Circumference Of Circle

Solution : Area Of Circle = 301 . 84 cm^2

According To Formula We Solve It π^2

π^2 = 301.84

22/7 × r^2 = 301.84

r^2 = 301.84 × 7 /22

r^2 = 1372 × 7 / 100

r = √ /9604/100

r = 98/10

r = 9.8 CM

Isliye Circumference Of Circle

According To Formula circumference

2πr

2 × 22/7 × 9.8

61 . 6 cm

The Answer Is 61.6 cm

Answer 2

Answer:

The circumference of a circle is $61.6cm$.

Step-by-step explanation:

In context to the question asked,

We have to find the circumference of a circle,

As per data given in the question,

Area = $301.84cm^2$

For calculating the circumference:

The formula to be used:-

=> Circumference = $2\pi r$

Now, we have to calculate the radius:

We know that,

Area = $\pi r ^2$

Therefore,

=> $301.84cm^2$ = $\pi r ^2$

=> $301.84cm^2=\frac{22}{7} \times r ^2$

$=> r^2 = \frac{301.84 \times 7}{22}$

$=> r^2 = 96.04$

Taking square on both sides,

$=> r = \sqrt{96.04}$

$r = 9.8cm$

So, the radius of a circle is 9.8 cm

Now, put this value in the formula of the circumference:

=> Circumference = $2\times \frac{22}{7}\times 9.8$

                              = 44 $\times$ 1.4

                              = 61.6 cm

So, the circumference of the circle is $61.6 cm$.