Question

Find the volume of the cone.

4 cm
3 cm
V = [?] cm3
Round to the nearest tenth.

Answer 1

37.7

_______

NOT 37

Explanation:

v =
`(1)/(3)` ·
`\pi` ·
`r^(2)` ·
`h`

v =
`(1)/(3)` ·
`\pi` ·
`3^(2)` ·
`4 = 12\pi = 37.69911 =` 37.7

Answer 2

Volume of a cone = 1/3πr²h

h = height

r = radius

r = 3cm h = 4cm

Volume = 1/3π(3)²(4)

= 36 × 1/3π

= 12π

= 36.69cm³

= 37cm³ to the nearest tenth

Hope this helps