Question

(i) From a metallic sheet of length 44 cm and breadth 5 cm a cylindrical pipe of
maximum volume is formed. If the height of the cylinder is 5 cm, then its radius
is​

Answer 1

Answer:

here we will take the area of the rectangle as the surface Area of the cylinder. And after doing that we will take 2 X 22/7 X r X h equals to the are of rectangle. by putting the value of 'h' we can find the radius