The circumference of the base of a right circular cylinder is 220cm.If the height of the cylinder is 2m ,find the lateral surface area of the cylinder ?
Answer given on back of the book is 4.4m square
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Circumference =2πr
so, 2πr = 220
πr=110
r=110\π
so,
L.S.A. of a cylinder =2πrh
=2 × π × 110\π × 200
= 2 × 110 × 200 cm^2
= 44000 cm ^2
so, lateral surface area of this cylinder is 4.4 m
Refer the attachment✌️✌️
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