Question

volume of
sphere
hemisphere
cone

lateral surface area, curved surface area too...


plzzz its urgent

Answer 1

sphere
volume = 4πr³/3
CSA n TSA r same for sphere = 4πr
HEMISPHERE
volume =2πr³/3
CSA = 2πr²
TSA = 3πr²
CONE
volume =πr²h/3
CSA = πrl
TSA = πr(r+l)

Answer 2

Hiii.......

♣ SPHERE

$vol =\frac{4}{3} \pi {r}^{3}$

$csa \: and \: tsa \: = 4\pi {r}^{2}$

♣ HEMISPHERE

$vol = \frac{2}{3} \pi {r}^{3}$

$tsa \: = 3\pi {r}^{2}$

$csa \: = \: 2\pi {r}^{2}$

♣ CONE

$vol \: = \: \frac{1}{3} \pi {r}^{2} h$

$csa \: = \: \pi \: r \: l$

$tsa \: = \: \pi \:r \: < r + l >$

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