Question

the T.S.A of the sphere is 314 cm2 find the diameter (π=3.14)?

Answer 1

Hope u understand .....


Thanxx

Answer 2

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\therefore{\text{Radius\:of\:sphere=5\:cm}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{ \underline \bold{Given : }} \\ : \implies \text{T.S.A\:of\:sphere = }314\:cm^{2}\\ \\ \red{ \underline \bold{To \: Find : }} \\:\implies \text{Radius\: of \: sphere= ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{T.S.A\: of \: sphere} =4\pi (r)^{2} \\ \\ : \implies 314=4 \times 3.14\times (r)^{2} \\\\ :\implies r^{2}=\frac{314}{3.14\times 4} \\\\ : \implies 25=r^{2}\\\\ :\implies r=\sqrt{25}\\ \\ \green{ : \implies \text{Radius\: of \: sphere} =5\: {cm}^{2}}\\\\ \purple{\text{Some\:formula\:related\:to\:this\:topic}}\\ \pink{\circ\:\text{Volume\:of\:sphere}=\frac{4}{3}\pi r^{3}}$