The answer to this question is 462
CSA of a cone= pie**radius*length (slant height)
=22/7 * 7 * 21
=22*21
=462
Written on 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
Written on March 28, 2018, 10:22 p.m.