Mathematics · Mensuration
A regular right pyramid with an equilateral triangular base of side 18 cm is completely submerged in a cylindrical tank of radius 10 cm, which is initially filled with water to a height of 25 cm. The pyramid's apex just touches the bottom of the tank. Given that the water level in the tank rises to 28 cm after the pyramid is submerged, find the perpendicular height of the pyramid (approximate).
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 128 cm
- 220.14 cm✓
- 327.12 cm
- 423 cm
Correct answer
20.14 cm
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