A pole is braced by two wires that extended from the top of the pole to the ground. The lengths of the wires are 16 feet and 18 feet and the measure of the angle between the wires is 110 degrees. Find, to the nearest foot, the distance between the points at which the wires are fastened to the ground. Please show work !

asked by Anonymous

12 years ago

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1 answer

using the law of cosines, the distance d is

d^2 = 16^2 + 18^2 - 2(16)(18)cos110°
d = 27.87 ft

answered by Steve

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Question

A pole is braced by two wires that extended from the top of the pole to the ground. The lengths of the wires are 16 feet and 18 feet and the measure of the angle between the wires is 110 degrees. Find, to the nearest foot, the distance between the points at which the wires are fastened to the ground. Please show work !

1 answer

using the law of cosines, the distance d is

d^2 = 16^2 + 18^2 - 2(16)(18)cos110°
d = 27.87 ft

Steve · Answer

using the law of cosines, the distance d is d^2 = 16^2 + 18^2 - 2(16)(18)cos110° d = 27.87 ft