The height of a cone is 15 cm. If its volume is 1570 cm³, find the diameter of its base. [Use π = 3.14]

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Solution

Height (h) of cone = 15 cm

Let the radius of the cone be r.

Volume of cone = 1570 cm³

⇒ r = 10 cm

Therefore, the diameter of the base of cone is $10 \times 2 = 20$ cm.

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Choose the correct answer in each of the following :

The volume of a cone is 1570 $c m^{3}$ and its height is 15 cm. What is the radius of the cone ? $(U s e π = 3.14.)$

(a) 10cm (b) 9 cm (c) 12 cm (d) 8.5 cm

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