2014 · Q85
For the next two (2) items that follow: A toy is in the form of a cone mounted on the hemisphere with the same radius. The diameter of the base of the conical portion is 12 cm and its height is 8 cm. What is the total surface area of the toy?
Elementary MathematicsMensuration
- A132π cm²
- B112π cm²
- C96π cm²
- D66π cm²
Explanation
r = 6 cm, slant height l = 10 cm: TSA = πrl + 2πr² = 60π + 72π = 132π cm².