Find the curved surface area of a cone having radius 21 cm and slant height 5cm. About the author Claire
Answer: 330 cm² Step-by-step explanation: given = radius (r) = 21 cm slant height (l) = 5 cm to find = surface area of the cone solution = curved (lateral) surface area of cone = πrl = 22/7 × 21 × 5 cm² = 22×21×5/7 cm² = 22×3×5 cm² = 330 cm² hope it helps. Reply
Answer:
330 cm²
Step-by-step explanation:
given =
radius (r) = 21 cm
slant height (l) = 5 cm
to find =
surface area of the cone
solution =
curved (lateral) surface area of cone = πrl
= 22/7 × 21 × 5 cm²
= 22×21×5/7 cm²
= 22×3×5 cm²
= 330 cm²
hope it helps.
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