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posted by :) on Tuesday, November 8, 2011 at 10:35am.
the ratio of the area of a smaller triangle to the area of a larger triangle is 1:4. if the are of the smaller triangle is 30, find the area of the larger triangle.
1:4 = 30:A or, 1/4 = 30/A or 4 = A/30 A = 120
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