What is the volume of the composite figure?

the link to the figure http://learn.flvs.net/webdav/assessment_images/educator_math2/v9/07_PP_07_047.jpg

Question

What is the volume of the composite figure?

the link to the figure http://learn.flvs.net/webdav/assessment_images/educator_math2/v9/07_PP_07_047.jpg

allank · Answer

The best way to do this is break up the composite figure into three cuboids. Can you do that?

allank · Answer

It's quite simple. Give it a try as I write a possible set of cuboids...

anonymous · Answer

ok

allank · Answer

This diagram should make it simpler...keep in mind that we have ignored the 4yd depth for now: 
|dw:1344977028160:dw|
This is the cross section. The volume will be the area of this cross section * the depth (4yd). Can you do it now?

anonymous · Answer

i still dont understand

allank · Answer

Hmm...how about a different example. Which formula would you use to get the volume of this figure?
|dw:1344977425703:dw|
The drawing isn't perfect. It's supposed to be a cylinder.