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Question 67
The curved surface area of a right circular cylinder of height 28 cm is 176 $$cm^2$$ . The volume(in $$cm^3$$) of cylinder is (Take $$\pi = \frac{22}{7}$$)
Solution
Lateral surface area of a cylinder=$$2\pi r h$$
Therefore 2*(22/7)*r*28=176
r=8/8
r=1 cm
Volume of a cylinder=$$(\pi) r^{2}h$$
=22*1*1*28/7
=88 sq cm
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