EM-737
Volume and surface area of solids
E Math · Secondary 3 · Medium · Volume and surface area of solids
A cone has height 18 cm and base radius 9 cm. It is filled with water to a height of 6 cm from the vertex (tip). Assuming the water surface is circular and similar to the base, find the radius of the water surface.
- 3 cm
- 2 cm
- 4.5 cm
- 6 cm
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