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Q.

The diagram shows a right rectangular pyramid. If the volume of the pyramid is 80 cm3 calculate its height, in cm.


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a

5 cm

b

6 cm

c

7 cm

d

2 cm 

answer is A.

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Detailed Solution

Given,
Length of pyramid l=8 cm
Width of pyramid,w=6 cm
The volume of the pyramid V=80 cm3
Height of pyramid, h =?
We know that the formula of Volume of right rectangular pyramid,
V= l×w×h3
Now, we have put the value in the formula we obtain,
80=8×6×h3
h=5 cm
Hence, height of pyramid h=5 cm
Correct option is 1.
 
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The diagram shows a right rectangular pyramid. If the volume of the pyramid is 80 cm3 calculate its height, in cm.