the height of a cylinder whose radius is 7 cm and the total surface area is 968 cm 2 is
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given :-
- radius of cylinder, r = 7cm
- total surface area of cylinder = 968 cm²
to find :-
- height of cylinder ?
solution :-
we know that,
- T.S.A = total surface area
- r = radius of cylinder
- h = height of cylinder
and it is given that
- total surface of cylinder = 968 cm²
- and radius of cylinder, r = 7cm
therefore, height of the cylinder is 15 cm
_______________________
additional information :-
if r and h denote respectively the radius of the base and height of a right circular cylinder then,
- Area of each end = πr² sq.units
- Curved surface area = 2πrh sq.units
- Total surface area = 2πr(r+h) sq.units
- volume = πr²h = (area of the base× height) cu.units
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