The 10.547 feet up the wall will the top of the ladder be if the 11-foot ladder is placed against the wall. The ladder is on ground level at an angle of 73.5° to the horizontal.
Trigonometry is a branch of mathematics that deals with the relationship between sides and angles of a right-angle triangle.
Length of the ladder = 11 foot
The angle between ladder and horizontal = 73.5 degree
The height of the wall, the top of the ladder be(h):
From the sin ratio:
sin73.5 = h/11
h = 11sin73.5 = 10.547 feet
Thus, the 10.547 feet up the wall will the top of the ladder be if the 11-foot ladder is placed against the wall. The ladder is on ground level at an angle of 73.5° to the horizontal.
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