Question

The radius of a circle is 10 m. find its area to the nearest whole number.

Answer 1

$\rule{200}{1}\\\dashrightarrow\large\textsf{\textbf{\underline{Given question:-}}}$

      The radius of a circle is 10 m. Find its area to the nearest whole number.

$\dashrightarrow\large\textsf{\textbf{\underline{Answer and how to solve:-}}}$

We're asked to find the area of the circle, which we can find using the following formula:-

$\bold{Area_{(circle)}=\pi r^2}$

Where:-

• π = pi         [3.14...]
• r=radius (10 m)

What we need to do to find the area:-

$\dagger$ Substitute 10 for r and 3.14 for π:-

$\hookrightarrow\sf{A=3.14\times(10^2)}$

$\bigstar$ On simplification,

$\bold{A=3.14\times100}$

$\bigstar$ On further simplification,

$\bold{A=314}$

$\bigstar$ The Area is:-

$\bold{A=314\:m^2}$

$\square\!\!\!\!\!\!\bigstar$ Note:- Area is always measured in units² (units squared)

Good luck with your studies.

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