Question

. A cone is 8.4 cm high and the radius of its base is 2.1 cm. It is melted and recast into a sphere. The radius of the sphere is *
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Answer 1

Answer:

Radius is 2.1 cm because diameter us same so radius is also same.

Answer 2

Answer:

radius of sphere is 2.1 cm

Step-by-step explanation:

put h = 8.4 cm

r = 2.1 cm

$\frac{1}{3} \times \pi {r}^{2} h = \frac{4}{3} \pi {a}^{3} \\ \\ h = 4 {a}^{3} \div {r}^{2} \\ \\ \\ \\ \\ \\ \\ \\ a = 2.1\: \: \: cm$