These bisectors intersect each-other at 90 degrees. And it means that they are perpendicular. Since they are perpendicular, we find that there 4 congruent triangles and XY is parallel to WZ and WX is parallel to YZ. Additionally, opposite angles are equal. These two latter findings are the characteristics of the parallelogram.
180-55-80=45
so it is 45 degree because triangle sun of all the angle is 180
It is even! hope this helps!
Answer: 9
Step-by-step explanation: The smaller triangle is half the size of the bigger one so the answer would just be half of 18
Please read the attached file