Cheater B.
asked 03/07/21LAW OF SINES AND COSINES
The sailing club leaves the marina on a heading N15oE and sails for 18 miles. They then change course, and after traveling for 12 miles on a heading N35oE, they experience engine trouble and radio for help. The marina sends a speed boat to rescue them.
1 Expert Answer

Mark M. answered 03/07/21
Mathematics Teacher - NCLB Highly Qualified
Draw and label a diagram with all given angles and all angles that can be determined.
The angle of the turn is 160°
Law of Cosine
d2 = 182 + 352 - (2)(18)(35) cos 160°
Bearing by Law of Sine
sin a / 35 = sin 160° / d
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Cheater B.
Law to be applied ? Approximate the measure of the other remaining angle? How far should the speed boat go? What is the measure of the included angle? What is the square of the distance from the port to the current location of the ship?03/07/21