Bisector of angles A and B of triangle ABC intersect at point N Find ANB if A = 58 degrees and B = 96 degrees.
May 17, 2021 | education
| 1. According to the condition of the problem, given: the bisectors of the angles A = 58 ° and B = 96 ° of the triangle ABC and the point of their intersection N.
2. In geometry it is known that:
a) the sum of all the angles of the triangle is 180 °;
b) the bisector divides the angle in half.
In the resulting triangle ANB, according to the bisector property
angle NAB = 1/2 angle A = 58 °: 2 = 29 °;
NBA angle = 1/2 angle B = 96 °: 2 = 48 °.
Hence the angle ANB = 180 ° – (29 ° + 48 °) = 180 ° – 77 ° = 103 °.
Answer: The ANB angle is 103 °.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.