Need help in calculating the volume of a cone - Math Help Forum

$Math Help Forum$

$Go Back$		Math Help Forum > Pre-University Math Help > Geometry
$Reload this Page$ Need help in calculating the volume of a cone

Download MHF Flyer

Mark Forums Read

$Reply$

#1

$Old$ October 22nd, 2009, 04:22 PM

stern4488 $stern4488 is offline$

Newbie

Join Date: Oct 2009

Posts: 3

Thanks: 0

Thanked 0 Times in 0 Posts

$stern4488 is on a distinguished road$

$Default$ Need help in calculating the volume of a cone

Help please. Need volume of cone. IF it base is 30 cm and is 45 cm tall. What is the volume? What is the caluclation you used?

$Reply With Quote$

Advertisement

#2

$Old$ October 22nd, 2009, 05:22 PM

$skeeter's Avatar$

skeeter $skeeter is offline$

MHF Contributor

Join Date: Jun 2008

Location: North Texas

Posts: 6,269

Country:

United States

Thanks: 52

Thanked 2,690 Times in 2,539 Posts

$skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$ $skeeter has a reputation beyond repute$

$Default$

Quote:

Originally Posted by stern4488 $View Post$

Help please. Need volume of cone. IF it base is 30 cm and is 45 cm tall. What is the volume? What is the caluclation you used?

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

$Reply With Quote$

#3

$Old$ October 23rd, 2009, 04:26 AM

aidan $aidan is offline$

Super Member

Join Date: Jan 2009

Posts: 592

Country:

United States

Thanks: 69

Thanked 133 Times in 123 Posts

$aidan will become famous soon enough$ $aidan will become famous soon enough$

$Default$

Quote:

Originally Posted by stern4488 $View Post$

Help please. Need volume of cone. IF it base is 30 cm and is 45 cm tall. What is the volume? What is the caluclation you used?

The area of the base of the cone is the area of a circle:
$A = \pi r^2$

The Volume of a cone is one third of the area of the base x the height of the cone:
$V =\pi r^2 \; h \; \frac{1}{3}$

$Reply With Quote$

$Reply$

« proving congruncy | Top | Geometry Tutor »

Thread Tools
$Show Printable Version$ Show Printable Version $Email this Page$ Email this Page
Display Modes
$Linear Mode$ Linear Mode $Hybrid Mode$ Switch to Hybrid Mode $Threaded Mode$ Switch to Threaded Mode

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are Off Pingbacks are Off Refbacks are Off

Forum Jump

All times are GMT -7. The time now is 02:01 AM.

your link here Sponsors

rv solar, e-learning,

Math Help Forum is a community of maths forums with an emphasis on maths help in all levels of mathematics.
Register to post your math questions or just hang out and try some of our math games or visit the arcade.