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March 28, 2015

Homework Help: Radicals and Trig.

Posted by SummerHomework on Wednesday, July 25, 2012 at 3:32pm.

I am catching up over summer on math units that I have to rewrite. In my textbook it asks me to find the base of two triangles and add them together. the smallest angle of the larger triangle is 30 degrees. The opposite side to the angle is 40cm. it gives me Tan 30 = 40/x
1/square root of 3 = 40/x
40 *(squareroot of 3)

My question is, how did my textbook get 1/sq.rt. of 3 as Tan 30?

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