# In the parallelogram ABCD, the bisector of angle A is drawn, which intersects

In the parallelogram ABCD, the bisector of angle A is drawn, which intersects the side BC at point E. What are the segments BE and EC if AB = 9 cm, AD = 15 cm?

1. The bisector AE of the parallelogram ABCD cuts off the triangle ABE, which is isosceles. Therefore, BE = AB = 9 centimeters.

2. Opposite sides of a parallelogram are equal. Therefore, BC = AD = 15 centimeters.

3. We calculate the length of the CE segment, taking into account that the total length of the CE and BE segments is equal to the length of the BC side:

BE + CE = 15 centimeters.

CE = 15 – 9 = 6 centimeters.

Answer: the segment BE is equal to 9 centimeters, the segment CE is equal to 6 centimeters. 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.