The bisector of one of the angles of the parallelogram, intersecting with its side, forms an angle with it equal
May 11, 2021 | education
| The bisector of one of the angles of the parallelogram, intersecting with its side, forms an angle with it equal to 32 degrees. Calculate the angles of a parallelogram
1. A, B, C, D – the tops of the parallelogram. BK – bisector to the AD side. Let us denote the angle by the symbol ∠. ∠АКB is equal to 32 °.
2. The bisector BK of the parallelogram ABCD cuts off the triangle ABK, which is isosceles. Therefore, ∠ AKB = ∠ABK = 32 °.
3. ∠ СВД = ∠АВК = 32 °, since the bisector BК divides ∠В into two equal parts. ∠В = 32 ° x 2 = 64 °.
4. The opposite angles of the parallelogram ∠D and ∠B are equal. ∠D = 64 °.
5.∠С = 180 ° – 64 ° = 116 °.
6.∠А = ∠С = 116 °
Answer: ∠А = ∠С = 116 °, ∠D = ∠В = 64 °.
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.