The height of a cone is 15 cm. If its volume is 1570 cm3, find the diameter of its base. [Use π = 3.14]
Height (h) of cone = 15 cm
Let the radius of the cone be r.
Volume of cone = 1570 cm3
`rArr(1/3xx3.14xx r^2 xx15)cm = 1570cm^3`
⇒ r2 = 100 cm2
⇒ r = 10 cm
Therefore, the diameter of the base of cone is 10 x 2 = 20 cm.
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