The height of a right circular cylinder is 6 cm three times the sum of the area of its two circular pieces is
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Step-by-step explanation:
height of cylinder h = 6 metres
Let radius of cylinder = r metre
∴ curved surface area =2πrh
Area of end face =πr2
⇒ Total area of two end faces
2πr2
Given that3×2πr2=2×2πrh
3r=2h
r=4cm
∴ Radius of base = 4 cm
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