An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum o

#optional #rdsharma #13.5
An oil funnel made of tin sheet consists of a 10 cm long cylindrical portion attached to a frustum of a cone. If the total height is 22 cm, diameter of the cylindrical portion is 8 cm and the diameter of the top of the funnel is 18 cm, find the area of the tin sheet required to make the funnel

NCERT solutions class 10th optional,RDSharma solutions,exercise 13.5,