What is the volume of this composite solid?

five hundred eighty-eight cubic inches

seven hundred eighty-four cubic inches

nine hundred fifteen cubic inches

nine hundred eighty cubic inches

Question

What is the volume of this composite solid?

five hundred eighty-eight cubic inches 

seven hundred eighty-four cubic inches 

nine hundred fifteen cubic inches 

nine hundred eighty cubic inches

anonymous · Answer

attachment

cwrw238 · Answer

the volume of the rectangular prisms are easy to find  they equal height * width * length

cwrw238 · Answer

volume of the triangular prism = area of triangular side * height
(area of  a triangle = 1/2 * base * height)

anonymous · Answer

392

cwrw238 · Answer

is that your final answer?

anonymous · Answer

no...

cwrw238 · Answer

thats the area of one of the rectangular prisms right?

anonymous · Answer

the answer choices are

588

784

915

980

cwrw238 · Answer

yes ok  but what is the 392 that you calculated?

cwrw238 · Answer

I should have said volume not area..

anonymous · Answer

8 x 7 x 7

cwrw238 · Answer

yes thats the volume of one of the rectanlgular prisms -  what about the other?

cwrw238 · Answer

there are 3 parts to this we need to find 3 volumes then add them to get final volume