Answer: 14
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Explanation:
Assuming this is a right triangle, we can use the tangent trig ratio
tan(angle) = opposite/adjacent
tan(53) = 19/x
x*tan(53) = 19
x = 19/tan(53)
x = 14.3175 approximately
x = 14 when rounded to the nearest whole number
Make sure your calculator is in degree mode. One way to check is to compute tan(45) and you should get the result 1.
