Question

find the volume of a cone if the radius of its base is 1.5 cm and its perpendicular height is 5 cm

Answer 1

v= \pi r^{2} h/3

so we have

h=5

r=1.5

so v=11.78097(approx.

Answer 2

Radius = 1.5 cm.
Height = 5 cm.


Therefore, Volume of the Cone = 1/3 × π × r^2 × h

= 1/3 × 22/7 × (1.5)^2 × 5

= 1/3 × 22/7 × 1.5 × 1.5 × 5

= 11.78 cm^2