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

REVIEW.

Read the pairs of adjacent angles above the line a b. (Diagram [8].)

Why are they adjacent?

What are adjacent angles?

Read the adjacent angles below the line a b.

On the right of the line c d. On the left.

How many pairs of adjacent angles are formed by the intersection of two lines.

Read the pairs of adjacent angles formed by the lines f g and i h.

Read all the adjacent angles formed by the lines l m, n p.

Read all the pairs of vertical angles formed by the lines a b, c d.