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Math Help - please help-urgent

  1. #1
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    please help-urgent

    what is the greatest number of acute angle that a triangle can contian?
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  2. #2
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    Well, since there are three angles in a triangle, it has to be 1,2, or 3. Let's start with 3. An equilateral triangle has equal side lengths and angles. Since the sum of the angles of a triangle must equal 180, then each angle is 60 deg, which is acute. So it's possible to have 3 angles in a triangle that are acute.
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