Exterior angle.
Remote interior angles
the exterior angle theorem
A triangle has 3 interior angles that add up to 180 degrees and 3 exterior angles that add up to 360 degrees
angle dcf and angle dfc
never
No. That is true only of a 90° angle.
Remote interior angles
A right angle triangle has a 90 degree angle and its other two angles add up to 90 degrees
Remote interior angles.
The 3rd angle of the triangle could be 90 degrees because the 3 angles in a triangle add up to 180 degrees.
the exterior angle theorem
Remote interior angles.
Are two angle of a triangle that are not adjacent to the exterior angle
A triangle has 3 interior angles that add up to 180 degrees and 3 exterior angles that add up to 360 degrees
Yes, it is.
Remote interior angles are the two angles of a triangle that are not adjacent to the exterior angle which is drawn by extending one of the sides. So when you draw out your triangle, the remote interior angles are the two angles that are the furthest away from your exerior angle.
No. The sum of the other two interior angles.