where is exterior in triangle
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out side the triangle not inside or exactly on the line
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An exterior angle of a triangle is equal to the sum of the opposite interior angles.
For more on this see Triangle external angle theorem.If the equivalent angle is taken at each vertex, the exterior angles always add to 360° In fact, this is true for any convex polygon, not just triangles. See Exterior angles of a polygon. In the figure above, drag the triangle's vertices and see that this is so.
For more on this see Triangle external angle theorem.If the equivalent angle is taken at each vertex, the exterior angles always add to 360° In fact, this is true for any convex polygon, not just triangles. See Exterior angles of a polygon. In the figure above, drag the triangle's vertices and see that this is so.
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