Relax

Respuesta :

Im sorry for taking your points i did not know you where new to the platform

i forgive you

Step-by-step explanation:

(2*PI*r_A*h_A) /(2*PI*r_*h_B)=440/3960

r_B=n*r_A,h_B=n*r_A

then n=3

r_A=10

then r_B=30