Abuilding is 3 ft from a 10-ft fence that
surrounds the property. a worker wants
to wash a window in the building 15 ft
from the ground. he plans to place a
ladder over the fence so it rests against
the building. (see the figure.) he
decides he should place the ladder 9 ft
from the fence for stability. to the
nearest tenth of a foot, how long a
ladder will he need?
5
ft
10 ft
9 ft
3 ft