A cylinder has a diameter of 20cm. The area of the curved surface is 100 m square . Find the height of the cylinder.
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Given:-
Diameter of cylinder =20 cm
Thus radius of the cylinder (r)= 20/2=10cm
Let, height of the cylinder =h cm
Given: Area of the curved surface area =100 cm²
Therefore, 2πrh=100
⇒2× 22/7×10×h=100
⇒h= 100×7/2×220
=1.59 cm =1.6 cm (corrected to one decimal place)
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