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**CONFUSED_ONE** A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 150 feet from a piling that is directly across from a pier on the other side of the lake. From his transit, the angle between the piling and the pier is 70degrees. What is he distance between the piling and te pier to the nearest foot?

can someone help me with a visual or diagram? the word problem is very confusing and i don't understand how to set up the diagram of the lake, the piling and the pier. what is a piling anyways? thanks!