Please help! I don’t understand. Thank you! (10 points) you went to the mall with $45. you spent 40% of your money on a new hat.
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now, let's recall Cavalieri's Principle, "solids with equal altitudes and cross-sectional areas at each height, have the same volume".
so, even though this cylinder is slanted, it has the same cross-sectional area as a cylinder that's straight-up, whose altitude is h = 5, and radius r = 4.