Math 10 Week 7: Trig

This week, we learned about how to calculate the side length of a triangle using ratios.  In this example, I used the tangent ratio, to give myself a bit of a challenge.  I really struggled with remembering how to reciprocate the ratio when the X is on the bottom.  The final answer, 46 m makes total sense, because it’s the much larger than the opposite side, but smaller than the hypotenuse.  If this question were to ask me to solve the triangle, I would’ve used Pythagorean Theorem to determine the hypotenuse, and subtracted 90 and 39 from 180 to determine the last angle.

 

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