# Math

BM and CN ARE ALTITUDES OF TRIANGLE ABC.IF AB=3.5cm,AC=3.2cm,AND BM=2.1cm ,calculate the area of triangle ABC and hence find CN

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1. area of triangle = (1/2)base x height
Using AC as the base, we are given BM as the height, so
area = (1/2)(3.2)(2.1) = 3.36

but we could have used AB as the base and CN as the height
area = (1/2)(3.5)(CN) = 3.36
CN = 3.36(2)/3.5 = ....

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Reiny

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