One angle of a right triangle measures 40°.

What is the measure of the other acute angle?

Your answer would be 50°.

The other two angles are 40° and 90°, so subtract them from 180° to get your answer of 50°.

The answer to your question is: ∡ = 50°

Step-by-step explanation:

Data

One angle measures = 40°

What is the measure of the other acute angle = ?

Process

The sum of the internal angles of a triangle equals 180°.

Another angle = 90°

∡A + ∡B + ∡C = 180°

40° + 90° + ∡C = 180°

130° + ∡ C = 180°

∡ C = 180° - 130°

∡C = 50°