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?
Read all the angles formed by the lines v w and x y.
Read all the angles above the line n p.
Below the line n p. Above the line q r.
At the right of the line 5 u.
At the left. At the right of the line s t.
At the left of the line s t.
Which angle is the greater, n 1 3, or n 2 4?
If the lines x y and v w were lengthened or produced, would the angles v z x, y z w be any greater?
If they were shortened, would the angles be any less?
What is an angle?
Does the size of an angle depend upon the length of the lines which form it?
Diagram 7.