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12 August, 18:48

A parallelogram with sides of 6 and 10 has an area of 30. Find the measure of the small angle of the parallelogram.

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  1. 12 August, 20:17
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    A = 2 * (0.5ab) + b (10 - a) = ab + 10b - ab = 10b

    10b = 30√2; b = 3√2

    sin α = 3√2 / 6; α = 45 degrees

    Small angle: 45°; Large angle: 135°
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