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the sum of the angle sin one triangle is 180, so the sum in three triangles would be 180x3, which is 540 degrees.

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Q: What is the sum of the angles in equals side three triangles?
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Yes, they are. IF the side is between the two angles in both triangles,and all three items flow in the same direction in both triangles.


Does a triangle and a line have equal 180?

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Yes if they have the same interior angles and have the same side lengths


How would you prove triangles are congruent?

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