Question

Find the volume of this cone.Use 3 for T.V = This=Tr2h3Hint: The radius (1) is142 of the diameter.15 inV~ [?]in32 in

Answer 1

Given

From the figure, the diameter of the cone is 2in, the height of the cone is 5in,

and the value of pi is 3.

$ie)\pi=3$

To find the volume of the cone.

Now,

The volume of the cone is given by,

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

Since r=d/2=2/2=1in, h=5in.

Then,

$\begin{gathered} V=\frac{1}{3}\times3\times1^2\times5 \\ =1\times5 \\ =5in^3 \end{gathered}$

Hence, the volume of the cone is 5in^3.