Maths

Find curved surface area of cone if r=7cm and slant height is 21 cm

Adi Sharma's image
Adi Sharma
March 28, 2018, 5:51 p.m.

Answers!

Anupama Singh's image
Anupama Singh
March 28, 2018, 10:22 p.m.

The answer to this question is 462

CSA of a cone= pie**radius*length (slant height)

=22/7 * 7 * 21

=22*21

=462

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