SOLUTION: Two points A and B lie on opposite sides of a river. Another point C is located on the same side of the river as B at a distance of 250 ft from B. If angle ABC is 100� and angle AC

Question 964721: Two points A and B lie on opposite sides of a river. Another point C is located on the same side of the river as B at a distance of 250 ft from B. If angle ABC is 100� and angle ACB is 20�, find the distance across the river from A to B.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

Find angle BAC since the angles sum to 180.

Use the law of sines,

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