The slant height of a cone is 10 cm, and the radius is 6 cm. What is the total surface area of the cone? (Take π = 3.14)
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 301.44 cm².
The slant height of a cone (l) = 10 cm, and the radius (r) = 6 cm
The total surface area of the cone = πr(r + l)
TSA = 3.14 × 6 × (10 + 6)
TSA = 3.14 × 6 × 16 = 301.44 cm2