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Mathematics 11 Online
OpenStudy (lefinnois):

Find the volume of the composite solid. Round your answer to the nearest hundredth. (Picture included)

OpenStudy (lefinnois):

OpenStudy (lefinnois):

I know you add the areas. With the prism, the two sides have a different size,so I'm confused.

jimthompson5910 (jim_thompson5910):

focus on just the box on the bottom length = 7 width = 5 height = 4.5 what is the volume of the box?

OpenStudy (lefinnois):

33

OpenStudy (lefinnois):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

volume of box = length*width*height volume of box = 7*5*4.5 volume of box = 157.5

jimthompson5910 (jim_thompson5910):

agreed?

OpenStudy (lefinnois):

Ah, the formula I saw online said it's 2l x 2w x 2h

jimthompson5910 (jim_thompson5910):

Where are you seeing that?

OpenStudy (lefinnois):

Sorry, 2l + 2w + 2h

jimthompson5910 (jim_thompson5910):

oh that's surface area

OpenStudy (lefinnois):

Ah, okay.

OpenStudy (lefinnois):

So it'd be 345.75.

jimthompson5910 (jim_thompson5910):

|dw:1465619559228:dw|

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