Transmission shaft angle question

According to the article the trans to driveshaft angle is 0 degrees. I have 5 - 5 = 0, the driveshaft to axle is 10 that is 5+5=10 it is a down angle of the shaft and a up angle of the axle. That is look from front to back.
So the front is good at 0 but the back is high at 10 with leaf springs?