Question

The area of circle id 616 cm 2 Find its Diameter

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Answer 1

As per the details provided in the above question,

The area of circle is

$616 {cm}^{2}$

We have to find the diameter of given circle.

Thus the formula of area of circle is as follows,

Area

$a= \pi \times {r}^{2}$

${r}^{2} = \frac{a}{\pi} \\ r = \sqrt{ \frac{a}{\pi} }$

$r = \sqrt{ \frac{616}{\pi} }$

$r = 14.0028 = 14cm$

Therefore the diameter of a circle is,

$d = 2r \\ = 2 \times 14 \\ = 28cm$

Hence the diameter of the circle is 28cm

Note:-The area of circle is 616 cm 2 Find its Diameter

Answer 2

Here the area of the circle is given to be 616 cm²

We have to find the diameter of the circle

First, we will find the radius of the circle by using the formula of area

area of circle = πr²

         616 = (22/7) × r²

           r² = 196

          r = √196

          r = 14 cm

So, diameter =2 × radius

                     = 2 × 14

                    = 28 cm

Hence, the diameter of the circle will be 28 cm