2. Find the total surface area of a cone whose
radius is 3 cm and height is 4 cm. (rt =3)
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Radius of cone is 3 cm
Height of cone is 4cm
TSA of cone is πrl
Then, l^2= √r^2+h^2
l^2= √3^2+4^2
l^2= √9+16
l^2=√25
l=5 cm
πrl= 22/7*3*5
22/7*15
=47.14
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