Question

If a radius of a sphere is 2 cm, the curved surface area of the sphere is equal to

Answer 1

$\huge\mathbb{SOLUTION:-}$

$\bold{Given:-}\begin{cases}\sf{Radius\:of\:sphere=2cm}\end{cases}$

$\huge\sf{\star{\red{To\:Find;-}}}$

• The curve surface area of sphere

$\boxed{\sf{Surface \:area\:of\:sphere=4\pi r{}^{2}}}$

$\bf\underline{\underline{According\:To\: Question:-}}$

$\sf\implies Curve\:surface\:area=4\pi r{}^{2}\\ \\ \sf\implies Curve\:surface\:area=4\times \frac{22}{7}\times (2){}^{2}\\ \\ \sf\implies Curve\:surface\:area=\frac{4\times 22\times 4}{7}\\ \\\sf\implies Curve\:surface\:area=\cancel{\frac{352}{7}}\\ \\ \sf\implies {\blue{Curve\: surface\: Area=50.29cm{}^{2}}}$

• The curve surface area of sphere

$\underline{\boxed{\sf{\purple{Curve\: surface\:area\:of\: sphere=50.29cm{}^{2}}}}}$

#BAL

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