How do i do this ? what does the y = 1 have to do with the reflection

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.