In a right-angled triangle, one of the acute angles is 63 degrees.

In a right-angled triangle, one of the acute angles is 63 degrees. What percentage of the sum of the angles of this triangle is the other acute angle?

The required number of percent, which is the second acute angle of a right-angled triangle from the sum of all its angles, will be denoted by the conditional variable “X”.

The next step, using the conditions of the example, we get the equation: X = ((90 – 63) / 180) x 100.

Based on the results of solving this equation, we obtain X = (27/180) x 100 = 0.15 x 100 = 15%.

Answer: 15%.