In triangle ABC, angle BAC is 45, angle ABC = 60. BN-height. Find the NBC corner.
July 26, 2021 | education
| 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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