Matt and Theresa are 750 m apart. In between them, they spot a stationary advertising balloon that is tethered to the ground and they measure the angle of elevation of the balloon. Matt measures the angle to be 52°. Theresa measures her angle of elevation to be 40°. What is the height of the balloon above the ground?

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.