Question

If the base angle of
an isosceles triangle is 30 more than the vertical angle, find the measure of all the three angles,

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Answer 1

Answer:

Also, as in all triangles, the sum of the angles is 180° . We can then solve for x and determine that 3x+60=180 , which leads to 3x=120 and finally x=40 , so the vertex angle is 40° and each base angle is 70°