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If my formula is right, it should be 108 square inches. Since it is a right triangle, you should be able to solve it like a rectangle. However, you would take half. Here you would convert feet to inches, and that would be 24. Then multiply it by 9. Then divide by 2. Or, to make it easier, you can multiply 9 by 12 and not divide later.

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Q: What is the area of a right triangle 9 inches high and 2 feet long?
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