Question : Find the curved surface area of a cone of radius 12 cm and slant height 14 cm. (Use $\pi$ = 3.14)
Option 1: 4325.5 cm2
Option 2: 527.52 cm2
Option 3: 5436.6 cm2
Option 4: 501.54 cm2
Correct Answer: 527.52 cm 2
Solution :
curved surface area of a cone = $\pi rl$, where $r$ = radius, $l$ = slant height
Substituting the given values into the formula,
⇒ The curved surface area of the cone $= 3.14 \times 12 \times 14 = 527.52$ cm
2
Hence, the correct answer is 527.52 cm
2
.
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