Question

volume of a sphere is 64/27 ..tell about radiii ... plzz .... ​

Answer 1

I think your question
Is wrong and it should be about ratio


So I Hope this helps


Ratio of volumes of two spheres = 64:27
(4/3 πr₁³)/(4/3 πr₂³) = 64/27
r₁³/r₂³ = 4³/3³
(r₁/r₂)³ = (4/3)³
r₁/r₂ = 4/3

r₁ = 4 and r₂ = 3 as their sum is equal to 7.

Difference of their surface areas :
= 4πr₁² - 4πr₂²
= 4π (r₁² - r₂²)
= 4π (4² - 3²)
= 4π (16-9)
= 4π (7)
= 4(22/7) (7)
= 88 units


Thanks


Plz mark me brainliest

Answer 2

heya...!!

In mah view I think u needed ask about ratio not radii..

so here is ua answer :

★Ratio of volumes of two spheres = 64:27

(4/3 πr₁³)/(4/3 πr₂³) = 64/27

r₁³/r₂³ = 4³/3³

(r₁/r₂)³ = (4/3)³

r₁/r₂ = 4/3

r₁ = 4 and r₂ = 3 as their sum is equal to 7.

★Difference of their surface areas :

= 4πr₁² - 4πr₂²

= 4π (r₁² - r₂²)

= 4π (4² - 3²)

= 4π (16-9)

= 4π (7)

= 4(22/7) (7)

= 88 units

hope it helps..!!♥