The measure of one of the acute angles in a right triangle is 63.7º. What is the measure of the other acute angle?
A right triangle has a perpendicular corner in it. This means that one of its angle has a measure of 90 degrees. The sum of all angles in the triangle is 180. To determine the acute angle, or more importantly, the last missing angle, it would be, 180 = 90 + 63.7 + x x = 180 - 90 - 63.7 x = 26.3 degrees This is an acute angle because it is less than 90. So, the answer is 26.3 degrees.