Find the total surface area of a solid circular cone with base radius 3 cm and slant height 4 cm. [Take π = \(\frac{22}{7}\)]
Total surface area of cone = πrl + πr\(^2\) = πr(l + r) r = 3 and l = 4
Area = \(\frac{22}{7}\) × 3 (4 + 3) = \(\frac{22}{7}\) × 3 × 7 = 66 cm\(^2\)
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