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March 30, 2015

March 30, 2015

Posted by **MTHOMBENI BAFANA** on Monday, August 9, 2010 at 8:16am.

A) CALC. THE VOL. OF PART A.

B) CALC. THE VOL. OF PART C.

C) CALC. THE SURFACE AREA OF PART C.

D) CALC. THE VOL. OF THE REMAINING SPACE IN PART C IF THE LID IS CLOSED. PLZ HELP.

- MATHS -
**Reiny**, Monday, August 9, 2010 at 8:46amvolume of cone = (1/3)πr^2h, where r is radius and h is height,

you have the height, and the hemisphere fits exactly over the cone, so the radius of the cone is the same as that of the hemisphere.

volume of hemisphere = (1/2)(4/3)πr^3

(hemi means half)

I don't know how your pyramid fits in here, but the volume of a pyramid with square base

= (1/3)base x height.

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