Question

the sphere of radius 12 cm is melted and cones of radius 3 cm and height 4 cm are formed. how much such cones can be formed?

Answer 1

It is really very easy question.

Answer is 192 cone.

Step by step :-

Sphere is melted therefore find volume of sphere.

$= \frac{4}{3} \pi {r}^{3} \\ \\ = \frac{4}{3} \times \frac{22}{7} \times {12}^{3} \\ \\ = 7241.14 \: {cm}^{3}$

Now find volume of cone .

$= \frac{1}{3} \pi {r}^{2} h \\ \\ = \frac{1}{3} \times \frac{22}{7} \times 3 \times 3 \times 4 \\ \\ = 37.71 {cm}^{3}$

Now ,

From 37.71 cm^3 metal 1 cone

how many from 7241.14 cm^3 =(?)

$= \frac{7241.14}{37.71} \\ \\ = 192 \: cone$

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mark as brainliest answer.