Question

the radii of two sphere are in the ratio 2:5. Find the ratio between their surface area​

Answer 1

Step-by-step explanation:

Let the radius of two sphere number is r1 and r2

∵ r1/r2 = 1/3

Volume of spheres, V1 = 4/3πr13

and V2 = 4/3πr23

Now, V1/V2 = r13/r23 = (r1/r2)3

= (1/3)3 = 1/27

∴ V1 : V2 = 1 : 27

Hence, the volume of two spheres are in the ratio of 1 : 27.

Hope its helpful....

Answer 2

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