A 14.4 ft long ladder is leaned against a wall so its base is 3.2 ft from the wall. How far will the ladder reach vertically up the wall?
Use the Pythagorean Theorem: a2 + b2 = c2
with a = 3.2 and c = 14.4: (3.2)2 + b2 = (14.4)2
10.24 + b2 = 207.36
b2 = 197.12
b = 14.0 ft
