EM-745
Volume and surface area of solids
E Math · Secondary 3 · Hard · Volume and surface area of solids
The curved surface area of a cone is and its slant height is . Using the formula for curved surface area of a cone, find its radius.
- 12 cm
- \dfrac{12}{\pi} cm
- \dfrac{132}{11\pi} cm
- 121 cm
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