English, asked by jaluziya, 7 months ago

find the curved surface area and total surface of a cone whose height is 28cm and diameter is 42​

Answers

Answered by unknownmyth92
1

Answer:

2307.9

Explanation:

π‧r‧l. is formula to calculate csa of cone

L =\sqrt{h^{2}+r^{2}

diameter= 42

radius = 42 divided by 2 = 21cm

L= \sqrt{28*28*21*21

L=\sqrt{1225 = 35

csa = 3.14 * 21 * 35

=2307.9

Answered by harshini196
1

Explanation:

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