Page 17 - TB_5B
P. 17
Activity 2 Alternate Angles ab
dc
Learn about alternate angles.
c.
When parallel lines cross another line,
the angles that are formed on the opposite
sides are called alternate angles.
The measures of alternate angles are equal.
ac
bd
1 . Find the alternate angles.
a. b.
2 . Find the measures of the unknown angles. c.
a. b.
140 70 80
120
6
dc
Learn about alternate angles.
c.
When parallel lines cross another line,
the angles that are formed on the opposite
sides are called alternate angles.
The measures of alternate angles are equal.
ac
bd
1 . Find the alternate angles.
a. b.
2 . Find the measures of the unknown angles. c.
a. b.
140 70 80
120
6
