Triangle ADC is also a right triangle, with D the right angle, and AC the hypotenuse. The triangles are similar (right triangles which share an angle (A), so... AD/AC = AC/AB 5/6 = 6/AB AB = 6*6/5 = 36/5 = 7.2
Triangle ADC is also a right triangle, with D the right angle, and AC the hypotenuse. The triangles are similar (right triangles which share an angle (A), so... AD/AC = AC/AB 5/6 = 6/AB AB = 6*6/5 = 36/5 = 7.2
