
Adam S. answered 08/31/16
Tutor
New to Wyzant
Professional and Proficient Math Tutor
The ladder, wall and ground will form a right triangle, with a base 1.5 m and then angle between the hypotenuse and base 45º 36′.
The cosine of the angle will equal the length of the base over the hypotenuse.
cos(45° 36’) = 1.5/H.
solve for H.