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Local 483 Apprenticeship Practice Exam

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A right triangle has a base of 9 inches and a height of 12 inches. What is its area?
Correct Answer:
54 square inches
Explanation:
The area of a triangle is one-half the product of its base and height. In a right triangle, the base and height are perpendicular, so this formula applies directly. Multiply 9 by 12 to get 108, then take half to get 54. So the area is 54 square inches. The other numbers would come from either forgetting to divide by two or using different dimensions, but with the given base and height, 54 is the correct result.

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