If the radius of a sphere is doubled then what is the ratio of the surface area of original sphere to the new sphere
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Let the original radius be r
so the original volume = 4/3πr³
new radius = 2r
so new volume = 4/3π (2r)³ = 4/3 π (8r³)
ratio = 4/3πr³/4/3π (8r³)
= r³ / 8r³ = 1/8
so the ratio is 1:8
so the original volume = 4/3πr³
new radius = 2r
so new volume = 4/3π (2r)³ = 4/3 π (8r³)
ratio = 4/3πr³/4/3π (8r³)
= r³ / 8r³ = 1/8
so the ratio is 1:8
joashjohnson:
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ur ans is 1:4 have a nice day
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Thank you
np dear
Hi
suno usne volume ka ratio nikala hai apne surface area ka pucha
What Is your name
jo bhi yrr u made it brainlist but it was wrong ans
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