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diameter of the base of the cone is 10.5 and slant height is "7cm" find its C.S.A

Posted by Chinmay M.R 10 months, 3 weeks ago

CBSE > Class 09 > Mathematics

5 answers

Apoorv Shukla 10 months, 2 weeks ago

115.5cm^2

Nikhil N 10 months, 3 weeks ago

Diameter=10.5, d=10.5=r=10.5/2 Slant height= 7cm ,C.S.A of cone=πrl = 22/7×10.5/2×7=11×10.5=115.5 Answer.

Lucky Luck 10 months, 3 weeks ago

thanks

Komal Sultania 10 months, 3 weeks ago

Diameter=10.5 So, Radius=10.5/2 Length=7cm Now, C.S.A of cone=πrl =22/7×10.5/2×7 =11×10.5 =115.5

Shourya Jeet 10 months, 3 weeks ago

D=10.5 R=d/2 =5.2cm L=7cm C.s.a of cone = pi r l =22/7*5.2*7 =114.2 ans The Answers is 114.2m/2

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