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A beach has two floating docks. One is 650 meters east of
the lifeguard stand. The other is 60° southeast and 750
meters from the lifeguard stand,
Rounded to the nearest meter, what is the dista
the docks? Round to the nearest meter.
Law of cosines:q?=b2+(?- 2bccos(A)
589 meters
705 meters
792 meters
861 meters
650 m
60°
750 m

Respuesta :

Answer: 705m

Explanation:

Using cosine rule:
c²= a²+b²-2abcosC

Substituting:
c²=750²+650²-2(750)(650)cos60
c=√Ans
c= 705.336799..
=705m (nearest metre)

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