from a solid cylinder whose height is 2.4 cm and diameter 1.4 cm a conical cavity of same height and

from a solid cylinder whose height is 2.4 cm and diameter 1.4 cm a conical cavity of same height and

#MathHelpers#fromasolidcylinderwhoseheightistwopoint#MathHepers cm and diameter 1.4 cm a conical cavity of same height and same diameter is hollowed out find the total surface area of remaining solid to nearest square