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smartatmath
==section input One of the angles in a right triangle is *[input angle=30] degrees. Find all other angles. ==section solution In any triangle, the sum of all angles is 180 degrees. Since in a right triangle, one angle is always 90 degrees, that leaves 180-90=90 degrees for the sum of two other sharp angles. So, since one angle is given as $angle degrees, the other sharp angle is 90-$angle, or *[assign angle1=90-$angle] $angle1 degrees. So, the answer is that the angles of this straight triangle are 90, $angle, and $angle1 degrees. ==section output angle1 ==section check angle=40 angle1=50
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