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Find the curved surface area of …

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Find the curved surface area of right circular cone ,whose slant height is 25cm and the radius of base is 7cm.

Posted by Ashwini Goswami 3 years, 10 months ago

ICSE & ISC > Class 10 > Mathematics

1 answers

Yogita Ingle 3 years, 10 months ago

Formula of curved surface area of cone = πrl

Where r is radius and l is slant height

Since we are given slant height is 10 cm and base radius is 7cm

So, Curved surface area of cone = 3.14 × 25 ×7

= 549.5

Hence the curved surface area of cone is 549.5 cm square.

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