Question

find the CSA of a cone of radius 7cm and slant height 9cm

Answer 1

Hello!

$csa \: of \: cone \: = \pi \: rl$

r = Radius

l = Slant height of the cone.

Here,

r = 7cm, l = 9cm

$= \frac{22}{7} \times 7 \times 9$

$= 198$

Apologies if this isn't of help

Have a nice evening!

Answer 2

Answer:

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Step-by-step explanation:

radius 7cm

height 9cm

find the slant hight of L

L^2= R^2+h^2

l^2= 7*7+9*9

l^2=49+81

l^2= 130

l= 65

csa of cone is πrl

22/7*7*65

22*65

1430cm^2