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Mathematics 9 Online
OpenStudy (anonymous):

how do u use trigonometry to determine an angle of an isosceles triangle??

OpenStudy (ash2326):

Supposedly we are given the sides of isosceles triangle. If we draw a perpendicular from the vertex to the third side (two other sides are equal). It'll bisect the third side. |dw:1331409664200:dw|

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