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Diameter of the base of cone …

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Diameter of the base of cone is 10.5cm and its slant height is 10cm.Find its curved surface area

Posted by Hsrshdeep Singh 5 years, 3 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 5 years, 3 months ago

Radius (r) of the base of cone = 10.5/2

= 5.25 cm

Slant height (l) of cone = 10 cm

CSA of cone = πrl

= 22/7 × 5.25 × 10
= 22 × 0.75 × 10

= 165 cm²

Therefore, the curved surface area of the cone is 165 cm²

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