The base of a triangle is one third its height. If the area of the triangle is 24 square inches, what are the base and height of the triangle?

Let the height be h inches, so the base is h/3 inches. Using the triangle area formula, (1/2)(h/3)(h) = 24, which gives h² = 144 and h = 12. The base is therefore 12/3 = 4 inches, so the correct choice is 4 in, 12 in.

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