Perkins Collins
08/14/2024 · Middle School
(c) A cylinder has a height of \( b \) units and a diameter of \( 2 a \) units. (1) Determine the volume and surface area in terms of \( a \) and \( b \). (2) If you want to double the volume but keep the radius the same, by what scale factor will the height increase? (3) If the radius is doubled but the height stays the same, by what number will the area of the base of the cylinder increase? (4) If the radius is doubled but the height stays the same, by what number will the area of the side surface of the cylinder increase?
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1. Volume: \( V = \pi a^2 b \); Surface Area: \( A = 2\pi a^2 + 2\pi ab \)
2. Height scale factor: \( 2 \)
3. Base area increase: \( 3\pi a^2 \)
4. Side surface area increase: \( 2\pi ab \)
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