Mathematics · Mensuration
The perpendicular height of a cone is 12 cm and the radius of its base is 8 cm. The cone is cut into two parts by a plane parallel to its base such that the heights of both parts are equal. What is the ratio of the volumes of the upper part and the lower part respectively?
- 17 : 5
- 21 : 7✓
- 39 : 13
- 43 : 4
Correct answer
1 : 7
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