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a vertical pole 16 meters high stands on a plane which makes an angle of 18 with the horizontal. Find the length of the rope that will reach from the top of the pole to a point directly up the plane 25 meters from the foot of the pole

Sagot :

Given : h = 16m , Angle = 18 degrees, firnd : lenght of the rope
This problem is an application of trigonometric function.
 Solution : Using trigonometric function
                sin 18 = h / L, where h is the height and L is the lenght of the rope.
                 0.3090 = 16/L 
                 0.3090 L = 16  dividing both sides by 0.3090
                            L = 51.77 meters. answer