Question

T.S.A of hemi sphere of radius equal to 14 cm

Answer 1

Answer:1232 sq. Cm

Step-by-step explanation:

Total surface area of hemisphere =

2*pie*(radius)sq

=2*22/7*14*14

=2*22*2*14

=1232sq. Cm

Answer 2

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$\green{\therefore{\text{T.S.A\:of\:sphere=2464\:cm}^{2}}}$

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

$\green{ \underline \bold{Given : }} \\ : \implies \text{Radius(r) = 14\: cm} \\ \\ \red{ \underline \bold{To \: Find : }} \\:\implies \text{T.S.A\: of \: sphere= ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{T.S.A\: of \: sphere} =4\pi r^{2} \\ \\ : \implies \text{T.S.A\: of \: sphere} =4 \times \frac{22}{7} \times (14)^{2} \\ \\ : \implies \text{T.S.A\: of \: sphere} =4 \times 22\times 28 \\ \\ \green{ : \implies \text{T.S.A\: of \: sphere} = 2464\: {cm}^{2}}\\\\ \purple{\text{Some\:formula\:related\:to\:this\:topic}}\\ \pink{\circ\:\text{Volume\:of\:sphere}=\frac{4}{3}\pi r^{3}}$