If one of the angles is 28 degrees, then another is 90 degrees. Subtract 90 and 28 from 180 to get the final measurement. The last angle would be 62 degrees
<h2><em>Therefore, for 3 values of 'x', the given fraction is a square. So, for those 3 values of 'x', the square root of the fraction will be a whole number. Thus, the answer is 3.</em></h2>