Same-Side Exterior Angles


What are same-side exterior angles
? Exterior angles are formed when a line, called transversal, cuts or intersects two or more lines.

In the figure below, line p is the transversal or the line that cuts or intersects two lines (line m and line n).

Same-side exterior angles

Same-side exterior angles are located not only on the outside of the lines the transversal cuts, but also of course on the same side of the transversal or red line. 

Angle u and angle v are located on the same side of the transversal or line p and they are also located outside line m and line n. Therefore, angle u and v are called same-side exterior angles.

When a transversal intersects two lines, two pairs of same-side exterior angles will always be formed.

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