a 16-ft. ladder is leaning against a house. the ladder angle of elevation is 470, the distance between the wall and the foot of the ladder is 10.991ft.
Given ,
Length of the ladder is 16ft
Angle of elevation is 47 degree
To calculate the distance between the wall and the foot of the ladder
Cos thete = BC/AC
Cos 47 deg = BC / 16
16*0.6819 = BC
BC = 10.911 ft
Therefore , the distance between the wall and the foot of the ladder is 10.991ft
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