Question 23

Find the volume in $$cm^{3}$$ of a right circular cylinder of diameter 21 cm and height 10 cm.

Solution

Radius of cylinder = $$\frac{21}{2}=10.5$$ cm and height = $$10$$ cm.

=> Volume of cylinder = $$\pi r^2h$$

= $$\frac{22}{7}\times10.5\times10.5\times10$$

= $$22\times15\times10.5=3465$$ $$cm^3$$

=> Ans - (D)


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