Math, asked by kamalpanjwani07, 7 months ago

7. The radii of two spheres are in the ratio 2:5. Find the ratio between their
surface areas.

Answers

Answered by raviparmar2002

1

Step-by-step explanation:

For a sphere, surface area is 4•pi•r²

Thus Area is proportional to r²

Thus the ratio between two spheres' Area is

= r1² / r2²

= (r1/r2)²

= (2/5)²

= 4/25

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