Question

The radius of a cone is 9cm and its volume is 432picm cube .Find its height

Answer 1

Answer:

h = 5.1 cm    (approx.)

Step-by-step explanation:

volume of cone = 1/3 π r²h  = 432 cm³

r = 9cm

therefore, 1/3 π x 9 x 9 x h = 432

1/3 x 22/7 x 9 x 9 x h = 432

22/7 x 3 x 9 x h = 432

h = 432 x 7 / 22 x 3 x 9

by simplifying, we get,

h = 5.10 (or) 5.1     (approx.)