What is the CSA of a cone of height 15 cm and base 8cm. *
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height=15
base =8
slannt height formula
l^2= r^2+h^2
l^2= 8^2+15^2
l^2= 64+225
l^2= 289
l= √289
l= 17
CSA =πrl
= 22/7×8×17
= 427.42
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