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1. In an isosceles triande the base anges are equal and the vertex angle is twice of each base angle. find measure of the a

1 thought on “.<br />1. In an isosceles triande the base anges are equal and the vertex angle is twice of each base angle. find measure of the a”

1. Since the sum of the interior angles of any triangle adds upto 180° and also the base angles of an isosceles triangle are equal,we may let the base angles be x,then the vertex angle is 2x.

   =>x+x+2x=180°

   =>4x=180°

   =>x=180/4

   =>x=45°

   Vertex angle=2x=2×45=90°

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