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A square pyrimaid has a volume of 605 cubic centimeters and a height of 15 centimeters . What is the area of the base ? What is the length of an edge of the base ?

Guest Apr 13, 2017
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Vsquare pyramd =  (1/3) * Area of Base * Height ......so,,,,

 

605 = (1/3)*  Area of Base  * 15   simplify

 

605  =  5 * Area of Base     divide both sides by 5

 

121 cm^2   =  Area of Base

 

Since the pyramid has a square base...the length of an edge  = sqrt (121)  =  11 cm

 

 

 

cool cool cool

CPhill  Apr 13, 2017

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