Question: Question 14 490 21 km 570 B Points A, B and C are three flags on an orienteering course, The angles at A and B

Question 14 490 21 km 570 B Points A, B and C are three flags on an orienteering course, The angles at A and B are 49 and 57 respectively, and the length AC is 21 km. Find the length BC, correct to two decimal places. BC - 36.59 km
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