The difference between outside and inside radii of a metallic cylindrical pipe of length 14cm is 2cm. If the pipe is made of 440cm^3 of metal, find the outer and inner radii of the pipe.
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Answer:
3.5 , 1.5 GQ
Step-by-step explanation:
R - r = 2 --(1)
22/7 *(R^2 - r^2) × 14 = 440
R^2 - r^2 = 10
(R- r)(R + r) = 10 => R + r = 10/2 = 5
R + r = 5 ---(2)
on adding (1) & (2) we have
= 2R = 7 => R = 3.5cm & r = 3.5 - 2= 1.5 cm
outer radii = 3.5 cm & inner radii
= 1.5cm
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