Question

616 is the area of a circle find its diameter

Answer 1

616= pie * r²
r²=( 616*7)/22
r = root of196
r= 14
therefore diameter= 14+14=28

Answer 2

The given data in the above question,

It is given that the value is $616$

we have to find the diameter of the given circle.

Thus, the area of a circle is as follows,

$\begin{array}{l}a=\pi \times r^{2} \\r^{2}=\frac{a}{\pi} \\r=\sqrt{\frac{a}{\pi}} \\r=\sqrt{\frac{616}{\pi}} \\r=14.0028=14 \mathrm{~cm}\end{array}$

The diameter of the circle is,

$\begin{array}{l}d=2 r \\=2 \times 14 \\=28 \mathrm{~cm}\end{array}$

Hence the diameter is 28cm.

Note:-616cmsq is the area of a circle find its diameter