Question

The radius and the perpendicular height of a cone are in the ratio 1 : 3. Is the volume of the cone is 8.624 cubic cm, find the perpendicular height​

Answer 1

Answer:

radius=1.4 cm

height=4.2 cm

Step-by-step explanation:

volume of cone=1/3×pie×R×R×H=8.624

let radius=x so height=3x

put in above equation

(1/3)×(22/7)×x×x×3x=8.624

x×x×x=8.624×7/22=2.744

x=1.4 cm=radius

height =1.4×3=4.2 cm