Question

How to find area of a circle?​

Answer 1

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$Area \: of \: a \: circle= \pi {r}^{2}$

Answer 2

Question:-

• How to find area of a circle?​

αnswer:-

• We can simply by using the formula we can find the area of a circle.

Formula:-

$\sf{\longmapsto\:Area\:of\:a\:circle\:=\:\pi\:r^{2}}$

Where

• R = Radius
• π = pi = 22/7

For Example:-

Let us assume

• Radius = 7cm

$\sf{\longmapsto\:Area\:of\:a\:circle\:=\:\pi\:r^{2}}$

$\sf{\longmapsto\:Area\:of\:a\:circle\:=\:\dfrac{22}{7}\:\times\:(7)^{2}}$

$\sf{\longmapsto\:Area\:of\:a\:circle\:=\:\dfrac{22}{7}\:\times\:49}$

$\sf{\longmapsto\:Area\:of\:a\:circle\:=\:22\:\times\:7}$

$\sf{\longmapsto\:Area\:of\:a\:circle\:=\:154cm^{2}}$

$\sf{Therefore\:the\:area\:of\:a\:circle\:is\:154cm^{2}}$

Diagram of the circle:-

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\qbezier(2.3,0)(2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,-2.121)(0,-2.3)\qbezier(2.3,0)(2.121,-2.121)(-0,-2.3)\put(0,0){\line(1,0){2.3}}\put(0.5,0.3){\bf\large 7\ cm}\end{picture}$

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