Question

Find the area of a circle with a radius of 7cm

Answer 1

$\huge\pink{\boxed{\green {\mathbb{\overbrace {\underbrace{\fcolorbox{red}{aqua}{\underline{\pink{ur\: answer }}}}}}}}}$

Find the area of a circle with a radius of 7cm

A = 153.94cm

Answer 2

Answer :

Given :-

• A circle whose radius is 7 cm.

To Find :-

• What is the area of a circle.

Formula Used :-

$\clubsuit$ Area Of Circle Formula :

$\mapsto \sf\boxed{\bold{\pink{Area_{(Circle)} =\: {\pi}r^2}}}$

where,

• π = pie or 22/7
• r = Radius

Solution :-

Given :

$\bigstar\: \bf Radius\: (r) =\: 7\: cm$

According to the question by using the formula we get,

$\longrightarrow \sf\bold{\purple{Area_{(Circle)} =\: {\pi}r^2}}$

$\longrightarrow \sf Area_{(Circle)} =\: \dfrac{22}{7} \times (7)^2$

$\longrightarrow \sf Area_{(Circle)} =\: \dfrac{22}{7} \times 7 \times 7$

$\longrightarrow \sf Area_{(Circle)} =\: \dfrac{22}{\cancel{7}} \times {\cancel{49}}$

$\longrightarrow \sf Area_{(Circle)} =\: 22 \times 7$

$\longrightarrow \sf\bold{\red{Area_{(Circle)} =\: 154\: cm^2}}$

${\small{\bold{\underline{\therefore\: The\: area\: of\: circle\: is\: 154\: cm^2\: .}}}}$