Yahoo Answers: Answers and Comments for How are we to find the distance from B to C? [Mathematics]
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From sepia
enGB
Tue, 26 Feb 2019 19:40:00 +0000
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Yahoo Answers: Answers and Comments for How are we to find the distance from B to C? [Mathematics]
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From Krishnamurthy: How are we to find the distance from B to C?
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https://uk.answers.yahoo.com/question/index?qid=20190226194000AAodM8i
https://uk.answers.yahoo.com/question/index?qid=20190226194000AAodM8i
Tue, 26 Feb 2019 22:39:43 +0000
How are we to find the distance from B to C?
The bearing from A to C is N 64° W.
The bearing from A to B is S 82° W.
The bearing from B to C is N 26° E.
A plane flying at 350 mph takes 1.8 h to go from A to B.
180°  64°  82° = 34°
82°  26° = 56° alt. int. ∠s
AB = 350 × 1.8 = 630
cos 56 = d/630
OR
sin 34 = d/630
d = 350 miles
The distance from A to B equals 1.8 × 350 miles.
∠A = 34°, ∠B = 56°, ∠C = 90°
The distance from B to C is 350 miles.