Question

Volume,surface area ,curved surface area,total surface area of cylinder ,cone and sphere.
I need the formulae

Answer 1

C.S.A of cylinder is 2×pi×r×h
T.S.A of cylinder 2×pi×r×(h+r)
Volume of cylinder is pi×r square ×h
C.S.A of Sphere is 4×pi×r square
There is no T.S.A for sphere (generally)
Volume of sphere is 4 by 3 × pi× r cube
C.S.A of cone is pi×r×l ( l means slant height)
T.S. A of cone is pi×r×(l+r)
Volume of cone is 1 by 3 × pi× r square × h

Answer 2

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$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

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$\Large\fbox{\color{purple}{QUESTION}}$

SURFACE AREA VOLUME FORMULAS

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$\Large\fbox{\color{purple}{ SOLUTION }}$

$\Large\mathcal\brown{CYLINDER}$

$\implies \: csa = 2\pi \: r \: h \\ \\ \implies \: tsa = 2\pi \: r(r + h) \\ \\ \implies \: volume \: = \pi \: {r}^{2} h</p><p>$

$\Large\mathcal\orange{CONE}$

$\implies \: tsa \: = \: \pi \: r \: (l + r) \\ \\ \implies \: csa \: = \pi \: r \: l\\ \\ \implies \: volume \: = \frac{1}{3} (\pi \: {r}^{2} h)$

$\Large\mathcal\red {SPHERE }$

$\implies \: tsa \: = 4\pi \: {r}^{2} \\ \\ \implies \: csa \: = 4\pi \: {r}^{2} \\ \\ \implies \: volume \: = \frac{4}{3} \: {r}^{3}$

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