Solution: What is the width of the river?

What is the width of the river?

Problem Statement:

A surveyor wishes to find the width of a river. He set up his transit at C on one bank and sighted across to point A on the opposite bank, then turning through an angle of 90°, he walks 225 m from C to a point B and finally, setting his transit at B, he measured angle BCA as 48.33°. What is the width of the river?

Problem Answer:

The width of the river is 252.8 m.


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