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Find the value of .

  1. Triangle labeled as follows: horizontal side, 35 feet, right side, x feet, left side, 43 feet, angle opposite right side, 50 degrees.

  1. Triangle with horizontal top side, with labels as follows: right side, x, feet, left side, 15 feet, right top angle, 41 degrees, left top angle, 25 degrees.

Use the Law of Cosines:

For any :

Use the Law of Sines:

For any :