Quantcast XP Math - Forums - View Single Post - stuck on only these "easy" geometry questions?
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Old 07-27-2007   #2
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I am not sure what is acute angles but if they are the other two angles of the right-angled triangle, then it would be easy to solve.firstly, a triangle has a total of 180 degrees so,180 dregree - 90 degree = 90 degree( right angle = 90 degree)x + ( 3x - 10) = 90 degreee.therefore x + 3x - 10 = 90 degreeadd up x :4x - 10 = 90plus 10 on both sides :4x - 10 + 10 = 90 + 104x = 100x = 25hope i am correct