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A rectangular strip 25 cm × 7 cm is rotated about the longer side. Find the volume of the solid, thus generated. |
Answer» Given, Dimensions of rectangular srip = 25 cm × 7 cm When it rotated about longer side: Radius of base = 7 cm Height of cylinder = 25 cm ∴ Volume of cylinder = πr2h = \(\frac{22}{7}\) x 7 x 7 x 25 = 3850 cm3 |
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