If the length is x, then
20/x = sin 75.5°
Now just solve for x.
a self supporting ladder placed so that the angle between the ladder and the ground is 75.5" can be used to test whether the ladder can support a certain load. The diagram represents a ladder placed next to a window that is 20feet above the ground. What is the length of the ladder ? Round to the nearest length.>
2 answers
20
1 answer