27 solids each of radius r and surface area s are melted to form a sph

Maths

27 solids each of radius r and surface area s are melted to form a sphere with surface area s' .find the r-r' of the new sphere and ratio of s2&s1

Indra Ravishankar

Feb. 23, 2020, 9:26 p.m.

Class 6