A right triangle has one angle that measures 42.3. What is the measure of the other acute angle?

Step-by-step explanation:

In any triangle the sum of all internal angles is 180.

You know that it is a right triangle son one anlge is 90° and they give you another angle wich is 42.3

So the solution for your missing angle is 180-90 - 42.3 = 47.7°