Answer:
The length of the ramp is 13 ft according to the Pythagorean theorem but I don't have an idea about the angle incline.. we must trigonometry to find it .
7x + 13 = 4x + 11 + 2x + 19
7x + 13 = 6x + 30
X = 17
7(17) + 13 = 132
Angle 3 is 132 degrees
The probability to be inside the large square is 3/10 and the probability to be inside the small square is 7/10