if the lateral surface area of a cylinder is 94.2cm and it's height is 5cm, find radius of its base and volume of cylinder
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Answer:
r =3 cm
Vol=141.42857 cm^3
Step-by-step explanation:
Given,
Lateral Surface area of cylinder= 94.2 cm
Also, Lateral Surface Area= 2πrh = 94.2
=> 2×3.14×r×5= 94.2 cm
=> r× 31.4= 94.2 cm
=> r = 94.2/31.4
=> r= 3 cm
Now, Volume of Cylinder= πr^2h
= 22/7×3×3×5
= 141.4 cm^3
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Step-by-step explanation:
a metal of a pipe is 77cm long inner diameter is 4 cm outer diameter is 4.4cm.
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