Curved surface area of a cylinder is 1980 cm2 and radius of its base is 15cm. Find the height of the cylinder. (???? =22/7 ).
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Answer:
the height of the cylinder = 21 cm
Step-by-step explanation:
Curved surface area of a cylinder is 1980 cm2 and radius of its base is 15cm.
π = 22/7
Curved surface area of a cylinder = 2πRh
R = radius = 15cm
h = height
Curved surface Area = 1980 cm²
2(22/7)15h = 1980
=> h = (1980 * 7)/(44 * 15)
=> h = (132 * 7)/44
=> h = 3 * 7
=> h = 21
=> h = 21 cm
the height of the cylinder = 21 cm
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