Question

Find the volume of a road construction marker, a cone with height 2 ft and base radius 1/5 ft. Use 3.14 as an approximation for π.The volume of the cone is __. (ft^2, ft^3, ft)(Simplify your answer. Type an integer or decimal rounded go the nearest hundredth as needed.)

Answer 1

Remember that

The volume of a cone is equal to

`V=(1)/(3)\cdot\pi\cdot r^2\cdot h`

we have

r=1/5 ft

pi=3.14

h=2 ft

substitute given values

`\begin{gathered} V=(1)/(3)\cdot3.14\cdot((1)/(5))^2\cdot2 \\ V=0.08\text{ ft3} \end{gathered}`

the answer is 0.08 ft^3