You multiply.
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-- Square the hypotenuse. (Multiply it by itself.)-- Square the base. (Multiply it by itself.)-- Subtract the square of the base from the square of the hypotenuse.-- Take the square-root of the difference. It's the height of the triangle.
multiply first, and then add
you are suppose to MULTIPLY on area.
multiply
you can multiply 281 and 3 you can add 840 and 3