Question

the radius and height of a cylinder are in the ratio 5:7 .if it's Volume is 4400cm^3. find the radi​

Answer 1

Answer:

ratio of radius:height = 5:7 = 5/7 = 5x/7x

:.radius = 5x , height = 7x

:.volume of cylinder = πr^2h = 4400

:.(22/7)*(25x^2)*(7x)= 4400

:.175x^3=4400*7/22

:.175x^3=1400

:.x^3=1400/175 = 8

:.x=2cm

:.radius = 5x cm = 5*2cm = 10cm