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Kaushik Bhingradiya · Answer 1 · 2021-09-16T05:10:27+0000

Answer:Every triangle has 180 degrees. An isosceles triangle has one vertex angle and two congruent base angles. Thus the vertex angle is 38 and the base angle is 71 and their sum is 109. :)

Explanation:

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the sum of all angles of

every single triangle

is 180 degrees

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