Question
Download Solution PDFThe 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
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The slant height of a cone is 10 cm, and the radius is 6 cm.
Formula used:
The curved surface area of the cone = πrl
The radius is r cm and the slant height is l
l2 = r2 + h2.
Total surface = πr(l+r)
Calculation:
As per the question,
The Total surface area of the cone is,
⇒ πr(l+r)
⇒ 3.14 × 6 (10+6)
⇒ 3.14 × 6 × 16
⇒ 301.44 cm2
∴ The correct option is 4
Last updated on Jul 10, 2025
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