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how do you find height of a rectacular prism when you know the volume and lenght?

Am I wrong thinking you devide?

if V=a·h and A=l·w 

lets say area=5cm squared and the volume i already know is 12

V=a·h

12=5·h

would you do 12/5?

 

 

thanks!

Guest Jun 4, 2017
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volume  =  area of base * height

V  =  ah

 

If you know    V = 12 cm3   and   a = 5 cm2    ,  we can say

 

12  =  5h                Divide both sides of this equation by   5 .

 

12/5 = 5h/5            Any number times five divided by five equals the original number.

 

12/5 = h

 

2.4 cm  =  h           Exactly as you said !!  laugh

 

 

Now......if you know volume and length , and want to know height, we could say

V = lwh

But...we cannot get a specific solution here because we need to know what  the width, " w " is. smiley

hectictar  Jun 4, 2017

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