Book Maths Puzzle Trigonometry

How do I find the value of variables in radical form given the value of one angle and one side in a triangle? Example a right triangle with one angle of 30 and the length of the a

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Book Other Question

Solve system of equation (for x and y coordinate): 4x-5y=3 -3x+4y=19 solve using linear equations

A engine on a test stand was operated at two fied settings each with an appropriate load. At the first setting, fuel consumption was 1 gal every 20