Question

jeff has a cone whose radius is 3cm and a height of 20cm.find its volume​

Answer 1

Answer:

60pi cm^3 (188.4 cm^3 or 1320/7 cm^3)

Step-by-step explanation:

Use the formula:

$V = \frac{1}{3}\pi r^{2} h$

Substituting r=3, h=20, you get

V=(1/3)*pi*9*20

=60pi cm^3

Or in case, you don't want pi in your final answer, and want it in form of a decimal or fraction, then substitute the value of pi in the answer as 3.14 or 22/7 accordingly.

Answer 2

Answer : 60pi cm^3 (188.4 cm^3 or 1320/7 cm^3)

Formula : V = 1/3×π×r^2×h

meaning of r^2 is square of radius