Question

A tank ia a form of right circular cylinder. Its height is 35cm and base area is 1386 sqcm. Find its volume

Answer 1

Hope this is useful for you....

Answer 2

Heya ......

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As,

Base area = 1386 $cm^2$ = $πr^2$

= 1386 = $\frac{22}{7}$ * $r^2$

= 1386 * 7 = 22 * $r^2$

= $\frac{9702}{22}$ = $r^2$

= 441 = $r^2$

= √441 = r

= 21cm = r .

Now,

As, r = 21cm and h = 35 cm

So, volume = $πr^2h$

= $\frac{22}{7}$*$21^2 * 35$

= $\frac{22}{7}$*$\text{441*35}$

= 22 * 441 * 5

= 110 * 441

= 48510 $cm^3$

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