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2 years ago from ireland. The value 180 comes from how many degrees are in a triangle. Sum Of Interior Exterior Angles Polygons Pentagon A plus x is that whole angle. How to find interior angles . If all angles are known the length of at least one of the sides must be known in order to find the…

To find the perimeter of a triangle use the formula perimeter a b c where a b and c are the lengths of the sides of the triangle. To find the perimeter of any of these triangles simply add the lengths of the three sides of the respective triangle. How To Find A Triangle S Perimeter Using Coordin…

The exterior angle d is greater than angle a or angle b. 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. Definition Of Angles Of Triangles Chegg Com The remote angles are the two angles in a tr…