Consecutive exterior angles are supplementary when two parallel lines are cut by a transversal. The same-side exterior angles are those on the exterior of the parallel lines and lie on the same side of the transversal. The exterior angle d of a triangle equals the angles a plus b, which are greater than angle a and greater than angle b. The exterior angle theorem states that when a triangle’s side is extended, the resultant exterior angle formed is equal to the sum of the measures of the two opposite interior angles of the triangle.
One exterior angle can be determined by subtracting the interior angle. Consecutive angles are formed on the same side of the transversal when two parallel lines are crossed by a transversal. The measure of an exterior angle (our w) of a triangle equals to the sum of the measures of the two remote interior angles (our x and y) of the triangle. If two angles are on opposite sides of the transversal and on the exterior of the parallel lines, these two angles are alternate exterior angles.
In summary, the exterior angle theorem states that any exterior angle of a triangle equals the sum of the opposite two interior angles. Same-side exterior angles are angles on the exterior of parallel lines and lie on the same side of the transversal.
📹 Corresponding Angles and Same Side Interior Angles – Geometry
This geometry video tutorial provides a basic introduction into corresponding angles and same side interior angles also known as …
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