Question

the ratio of area of circle of radius r and surface area of sphere of rafius r is-​

Answer 1

Answer:

the ratio between these two surface areas is 1:1.

Explanation:

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Answer 2

Answer:

hii mate

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• the ratio of surface area of a circle of radius r to the surface area of sphere of radius R

= r/R

But :-

surface area of circle (r) = π r²

and

surface area of sphere (R) = 4π r²

now

r/R = πr²/4π r²

r/R = 1/4

hence :-

the required ratio = 1/4

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answered