The sum of the angles in a triangle is always 180º. Therefore, if one angle in a right triangle is 90º, the sum of the other two angles must be 90º as well. Since one angle is given as 65º, the third angle can be found by subtracting 65º from 90º:
Third angle = 90º - 65º = 25º.
Therefore, the third angle in the triangle is 25º.
If a right triangle has an angle that is 65º , what is the third angle in the triangle?
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