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March 28, 2015

March 28, 2015

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

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?

- Radicals and Trig. -
**drwls**, Wednesday, July 25, 2012 at 10:08pmBecause that is the value of tan 30 . The short side length is half the hypotenuse for a 30-60-90 triangle.

If the hypotenuse length is 1, the Second longest side length must be sqrt[3/4]

That makes the tangent of 30 degrees 1/(sqrt3)

- Radicals and Trig. -
**SummerHomework**, Friday, July 27, 2012 at 10:50amThank you!

Next question.

What if instead they gave me the hypotenuse? 2/(sqrt2? Still tan 30.

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