Find the Volume cone (12)(20)



$\begin{array}{r} h = & 12 \\ r = & 20 \end{array}$

Step 1

The volume of a cone is equal to

$\frac{1}{3}$ times the area of the base

$π r^{2}$ times the height

$h$ .

$\frac{1}{3} \cdot π \cdot {(r a d i u s)}^{2} \cdot (h e i g h t)$

Step 2

Substitute the values of the radius

$r = 20$ and height

$h = 12$ into the formula to find the volume of the cone. Pi

$π$ is approximately equal to

$3.14$ .

$\frac{1}{3} \cdot π \cdot 20^{2} \cdot 12$

Step 3

Combine

$\frac{1}{3}$ and

$π$ .

$\frac{π}{3} \cdot 20^{2} \cdot 12$

Step 4

Raise

$20$ to the power of

$2$ .

$\frac{π}{3} \cdot 400 \cdot 12$

Step 5

Combine

$\frac{π}{3}$ and

$400$ .

$\frac{π \cdot 400}{3} \cdot 12$

Step 6

Cancel the common factor of

$3$ .

Factor

$3$ out of

$12$ .

$\frac{π \cdot 400}{3} \cdot (3 (4))$

Cancel the common factor.

$\frac{π \cdot 400}{3} \cdot (3 \cdot 4)$

Rewrite the expression.

$π \cdot 400 \cdot 4$

Step 7

Simplify the expression.

Multiply

$4$ by

$400$ .

$π \cdot 1600$

Move

$1600$ to the left of

$π$ .

$1600 π$

Step 8

The result can be shown in multiple forms.

Exact Form:

$1600 π$

Decimal Form:

$5026.54824574 \dots$

Find the Volume cone (12)(20)

Related Questions