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15 November, 14:22

Given triangle ABC, which equation could be used to find the measure of ∠B? right triangle ABC with AB measuring 6, AC measuring 3, and BC measuring 3 square root of 5 cos m∠B = 2 square root of 5 all over 5 sin m∠B = square root 5 cos m∠B = square root of 5 over 2 sin m∠B = 2 square root of 5 all over 5

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  1. 15 November, 17:30
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    Cos m∠B=2²/5
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