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The areas of the ends of a frustum of a ...

The areas of the ends of a frustum of a pyramid
are p and Q where `p lt Q` and H is its thickness.
What is the difference in radii of the ends of the frustum ?

A

`(sqrt(Q)-sqrt(p))/(sqrt(pi))`

B

`(sqrt(Q)-sqrt(p))/(pi)`

C

`sqrt(Q)-sqrt(P)`

D

None of the above

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