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Choose the variation of this equation: A=(1/2)(b)(h)

i need help sovling this problem.

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This equation is for the area of a triangle given it's base and height.

I assume you mean alternative equations.

In that case here are two others.

1. A = xy sin θ

     Here x and y are the lengths of two sides and θ is the angle between those two sides.

     Based on the SAS property of triangle congruence.

2. A = √[s(s-a)(s-b)(s-c)]

     Here a, b, and c are the lengths of the three sides, and s = (a+b+c)/2 is the semiperimeter.

     This is called Heron's Formula and is based on the SSS property of triangle congruence.