Question

the curved surface area of a cone is 4070 cm2 and it's diameter is 70cm.what is slant height

Answer 1

d = 70
R = 35
CSA of cone = πRl
4070 = 22/7 * 35 * l
4070/35 = 22/7 * l
814/7 * 7/2

Answer 2

Hey there!!

The formula we will use is

Curved surface area = ( π ) ( r ) ( slant height )

( 22 ÷ 7 ) ( 35 ) ( I ) = 4070

110I = 4070

I = 4070 ÷ 110

I = 37 cm

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