Homework Help: bearing

Posted by Alero on Thursday, January 7, 2010 at 3:32pm.

Three towns p, q and r are such that the distance between p and q is 50km and the distance between p and r is 90km. If the bearing of q from p is 075 and the bearing of r from p is 310, find the
(a)distance between q and r
(b)bearing of r from q

bearing - bobpursley, Thursday, January 7, 2010 at 3:46pm
Ok, the angle at p is between 310 and 075,or an angle of 125 (check that). YOu have two sides, one angle

find another angle with the law of sines.
then find the last angle (sum of angles is 180)
then find the last side by law of sines.

Make certain you draw the figure, life is simpler with a drawing.
bearing - Alero, Thursday, January 7, 2010 at 4:00pm
thank you, although am still hooked

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