You can
put this solution on YOUR website!Draw the picture of the isosceles triangle.
The two equal angles are each 7x and the vertex angle is x.
The sum of the angles of a trianble = 180 degrees
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EQUATION:
7x+7x+x=180
15x=180
x=12 degrees
The vertex angle = 12 degrees
Each of the base angles is 7x= 84 degrees.
Cheers,
Stan H.