Marks' first lessons in geometry / In two parts. Objectively presented, and designed for the use of primary classes in grammar schools, academies, etc.

by Bernhard Marks

Diagram 14.

LESSON FIFTEENTH.

RELATIONS OF ANGLES.

OPPOSITE ANGLES.

Are the angles e m b, b m n, on the same side of the intersecting line e f?

Are they adjacent?

Are e m b, m n d, on the same side of the intersecting line e f?

Are they adjacent?