McGraw Hill Glencoe Geometry, 2012
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McGraw Hill Glencoe Geometry, 2012 View details
1. Classifying Triangles
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Exercise 18 Page 241

Check the angle measures.

Equiangular

Practice makes perfect
Consider the angles on the given triangle. All of the angles have a measure of 60^(∘).

Since this triangle has three congruent angles, it is an equiangular triangle.