It used to reach 9.75 feet at an angle of 54.3 degrees

Now it reaches 11.55 feet at an angle of 74.3 degrees

12^2 -49^2 = 9.75^2

12^2 -3.244^2 = 11.55^2

the ladder is the hypotenuse of a right triangle with base originally 7 and then 3.244, height originally 9.75 and then 11.55