# From a solid cylinder whose height is 2.4 cm and diameter 1.4 cm, a conical cavity of the same height and same diameter is hollowed out. Find the tota

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From a solid cylinder whose height is 2.4 cm and diameter 1.4 cm, a conical cavity of the same height and same diameter is hollowed out. Find the total surface area of the remaining solid to the nearest c m^2

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Total surface area=pir^2+2pirh+pirl
=pir^2+2pirh+pir sqrt(r^2+h^2)
=pir(r+2h+sqrt(r^2+h^2))
=22/7(0.7)(0.7+4.8+sqrt(2.4^2+0.7^2))
=2.2(5.5+2.5)
=17.6 cm^2