Question

Find the volume of the cone.

Use A = 22/7 and round your answer to the nearest hundredth.
Height 30 cm
Base 10 cm

Answer 1

3142.86 cubic cm

Explanation:

volume of cone is given by formula

volume of cone = 1/3(area of base*height)

Given radius of base = 10cm

we know area of circle is given by
`\pi r^2` where r is radius of circle

thus area of base of cone is calculated below

`\pi 10^2\\=> 22/7 *100\\=> 314.2857`

area of base of cone is 314.2857 square cm

height = 30 cm

Thus volume of cone = 1/3* (area of base*height)

= 1/3(314.2857*30)

= 1/3 *9428.571 = 3142.857.

Thus, volume of cone is 3142.857 cubic cm.

volume of cone to the nearest hundredth is 3142.86 cubic cm