Two cylinders are similar. The radius of cylinder A is 5.6 inches. The radius of cylinder B is 1.4 inches. If the height of cylinder B is 4 inches, what is the height of cylinder A?

For similar cylinders, corresponding lengths have the same scale factor. The radius scale factor from cylinder B to cylinder A is 5.6 ÷ 1.4 = 4, so cylinder A’s height is 4 × 4 = 16 inches. The correct choice is 16 inches; square inches measure area, not height.

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