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

LESSON SIXTH.

REVIEW.

Read all the lines that form angles with the line a b. (Diagram [6].)

Which of them forms the greatest angle with it?

Diagram 6.

Which the least?

Of the two lines c d, g h, which forms the greater angle with e f?

Read all the angles whose vertices are at o on i j.

Which angle is the greater, l o m, or m o j?—i o k, or i o l?—l o j, or m o j?