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The answer is 6. The formula is 1/2 of base times perpendicular height. In the case of a 3:4:5 triangle, there is a right angle between the two shorter sides so they are inherently perpendicluar to each other. So you can either say the base is 3 and the perpendicular height is 4 or the base is 4 and the perpendicular is 3 - either way 1/2 x 3 x 4 = 6. Brian DOWNIE The answer is 6. The formula is 1/2 of base times perpendicular height. In the case of a 3:4:5 triangle, there is a right angle between the two shorter sides so they are inherently perpendicluar to each other. So you can either say the base is 3 and the perpendicular height is 4 or the base is 4 and the perpendicular is 3 - either way 1/2 x 3 x 4 = 6. Brian DOWNIE

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Q: What is the area of a 3 by 4 by 5 cm triangle?
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