How many unique triangles can be drawn with interior angles measuring 40°, 40°, and 100°?

There are 3 unique triangles that can be drawn with interior angles measuring 40º, 40º and 100º.

Explanation:

We should remember that according to Euclidean geometry the sum of internal angles in every triangle equals 180º and that every angle is opposed by a side. Given the values of internal triangles, the possible combinations are described below:

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There are 3 unique triangles that can be drawn with interior angles measuring 40º, 40º and 100º.

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