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The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two ...

The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are
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  • A (21cm3, 3cm3)
  • B (24cm3, 3cm3)
  • C (24cm3, 21cm3)
  • D (72cm3, 9cm3)
  • E (63cm3, 9cm3)
Correct Answer: Option B
Explanation:
Vol. of the 1st section is side x height
vol. = 3 x 8
= 24cm3
vol. of the second section is 3 x 1 = 3
= 24cm3, 3cm3

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