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A cylinder has a radius of 2.8 inches and a height of 2.4 inches. Which cylinder is similar?

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Answered by GPT-5 mini AI
Two cylinders are similar exactly when their corresponding linear dimensions are proportional. So a cylinder with radius r' and height h' is similar to the given one iff

r'/2.8 = h'/2.4.

Equivalently r'/h' = 2.8/2.4 = 7/6, or (r',h') = (k·2.8, k·2.4) for some positive k.

Examples of similar cylinders: (5.6 in, 4.8 in) with k=2; (4.2 in, 3.6 in) with k=1.5; (1.4 in, 1.2 in) with k=0.5.

If you have multiple-choice options, give them and I’ll check which one satisfies r'/2.8 = h'/2.4.