The Sum of the radius of the base and the height of a solid cylinder is 37 metres. If the total surface area of the cylinder be 1628sq metres, find its volume.

Let the Radius of the solid cylinder be ‘r’ m and its height be ‘h’ m.


Given,


Sum of radius and height of solid cylinder = 37 m


r + h = 37 m


r = 37 – h


Total surface area of solid cylinder = 1628 m2


Total surface area of solid cylinder is given by 2πr (h + r)


2πr (h + r) =1628 m2


Substituting the value of r + h in the above equation


2πr × 37 = 1628 m2


r = 1628 × 7/22 × 1/2 × 1/37 m


r = 7 m


Since, r + h = 37 m


h = 37 – r m


h = 37 – 7 m = 30 m


Volume of solid cylinder = πr2h


= 22/7 × 72 × 30 m2


= 4620 m2


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