Question

volume of 2 sphrers are in the ratio 64:27 find the ratio of their surface areas

Answer 1

Answer:

Step-by-step explanation:

=volume of sphere 1 / volume of sphere2 = 64 /27

 = 4/3 x pie x r³ / 4/3 x pie x R³ = 64 /27

= r³ /R³ = 64/27

= r/R=4/3

now

= surface area of sphere 1 /surface area of sphere 2

= 4 x pie x r² / 4 x pie x R²                                  

= r²/R²

=16/9

the ratio is 16:9

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