Question 994567
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Since it is an equilateral triangle, it is also an equiangular triangle.  That tells you two things.  One, since the sum of the angles in any triangle is 180, the measure of any of the angles of an equiangular triangle must be one-third of 180, or 60 degrees.  Two, since all of the angles are equal, the two expressions representing the measures of angles C and B must be equal.


So, you can either set the two expressions equal to each other and solve for *[tex \Large x] or set either of the expressions equal to 60 and solve for *[tex \Large x] 


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \