Question

find the diameter of a circle if it's area is 616 cm²​

Answer 1

Answer:

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Step-by-step explanation:

d≈28.01

Answer 2

The given data in the above question,

It is given that the value is $616^{2}$

we have to find the diameter of a circle.

Thus, the area of a circle is as follow,

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

Therefore the diameter of a circle is,

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

Hence the diameter of a circle is 28cm.