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il63 [147K]
3 years ago
15

Two ropes are attached to a large ballon in a parade. The people holding the ropes are 40 feet apart,and the angle between the t

wo ropes is 86 degrees. The angle of elevation of one rope is 42 degrees. How long is each rope..Step by Step explanation..Please ..Thanks.

Mathematics
1 answer:
ANTONII [103]3 years ago
5 0

Answer:

The lenthts of the ropes, as per the figure attached, are

  • <u>27 ft </u>(rope A) and
  • <u>32ft</u> (rope B)

Explanation:

See the figure attached for any reference.

We can find the lengths of both ropes using the law of sines.

<u>1. Rope A:</u>

   \dfrac{RopeA}{sin42\º}=\dfrac{40ft}{sin86\º}\\ \\\\\\RopeA=40ft \times \dfrac{sin42\º}{sin86\º}=26.8ft\approx 27ft

<u>2. Rope B</u>

First, calculate the included angle: 180º - 86º - 42º = 52º

Now use the law of sines:

\dfrac{RopeB}{sin52\º}=\dfrac{40ft}{sin86\º}\\ \\\\\\RopeB=40ft \times \dfrac{sin52\º}{sin86\º}=31.6ft\approx 32ft

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