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Monica has a triangular piece of fabric the height of triangle is 15 inches and the triangles base is six inches Monica says that the area of the fabric is 90 inches squared what error did Monica make

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griseldacastrol
15*6=90 then you divide by 2. So 90/2=45. the answer is 45 squared inches. Her error is that she didn't divide by 2.
 the answer is She didn't divide by 2

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