What is the approximate volume of a cone with a height of 11 ft and radius of 3 ft?
use 3.14 to approximate pi, and round answers to two decimal places if necessary. actually ttype in 3.14 don't use the symbol because it adds more numbers

don't use this do 3.14

Substitute the values of the radius (r=3), the height (h=11), and an approximation of Pi (3.14) into the formula to find the volume of the cone.
V≈+1/3⋅3.14⋅3^2⋅11

Simplify.
Write 3.14 as a fraction with denominator 1. 
V≈+1/3⋅3.14/1 

Combine 1/3 and 3.14/1 to get 3.14/3. 
V≈+3.14/3 

Replace back in to larger expression. 
V≈+3.14/3⋅3^2⋅11 

Divide 3.14 by 3 to get 1.04666667.
V≈+1.04666667⋅3^2⋅11

Raise 3 to the power of 2 to get 9.
V≈+1.04666667⋅9⋅11

Multiply 1.04666667 by 9 to get 9.42.
V≈+9.42⋅11

Multiply 9.42 by 11 to get 103.62.
V≈+103.62

Remove trailing zeros from 103.62.
V≈+103.62ft^3

Volume:
V≈+103.62ft^3

So volue of a cone=1/3 times (area of base) times height
area of base=circle so

find area of base/circle

pi times r^2
3.14 times 3^2
3.14 times 9
28.26

1/3 times 28.26 times 11=103.62 cm^3