Find the value of x round to the nearest tenth


Asked by maham237 @ in Mathematics viewed by 285 People


Answered by maham237 @



I assume you're allowed to use sin and cos laws here, this is a trigonometry class, yes? Here we have an angle of a right triangle, and the side adjacent to it, and we need to find the hypotenuse. Since cos = adj/hyp, it's the proper one to use here:
cos(24) = \frac{11}{x}
x = \frac{11}{cos24}
Evaluate it with a calculator to get x = 12.04 units. Make sense?

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