In triangle ABC, angle BAC is 45, angle ABC = 60. BN-height. Find the NBC corner.

To successfully solve the problem, you need to remember that the sum of the angles in any triangle is 180 degrees.

1. Find the value of the angle of the BCA:

180 – 45 – 60 = 75 °;

2. Consider the NBC triangle. Since BN is the height, the angle BNC is straight and is 90 °.

3. Let’s calculate the value of the angle NBC:

180 – 90 – 75 = 15 °.

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