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In the triangle below, determine the value of a.
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4 votes
In the triangle below, determine the value of a.

In the triangle below, determine the value of a.-example-1
User Reed Sandberg
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6.1k points

2 Answers

7 votes
You have to use tangent (ratio of sine and cosine).

Use tangent to find the opposite to the adjacent side (14) from the angle (in this case a).

a = 14*tan(42°) = 14*0,9 = 12,6 (approssimatively)
User Paul Patterson
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5.4k points
3 votes
tan42°=a/14

a=14tan42°

a≈12.61 (to the nearest hundredth of a unit)
User Santo Boldizar
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5.9k points
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