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Mathematics 8 Online
OpenStudy (samirahdanyel):

The composite figure is made up of two congruent rectangular pyramids joined at their bases. What is the total volume of the composite figure? units3

OpenStudy (samirahdanyel):

jimthompson5910 (jim_thompson5910):

let's focus on just one of the pyramids let's say the top pyramid

jimthompson5910 (jim_thompson5910):

|dw:1466144078947:dw|

OpenStudy (samirahdanyel):

okay

jimthompson5910 (jim_thompson5910):

|dw:1466144102204:dw|

jimthompson5910 (jim_thompson5910):

|dw:1466144166793:dw|

jimthompson5910 (jim_thompson5910):

the base of the pyramid is this rectangle |dw:1466144230437:dw| what is the area of this rectangle?

OpenStudy (unklerhaukus):

The volume of one pyramid is V = (1/3) * (area of base) * (height)

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