S1
Alternate Angles in Parallel Lines
Find the value of x in each figure below where two parallel lines are
cut by a transversal.
1)
2)
1440
3)
360
1310
1270
490
530
x
x
x
x=
x=
4)
x=
5)
6)
620 1180
1020 780
1250
550
x
x
x
x=
x=
7)
x=
8)
9)
x
1510
x
290
x
1300
830 970
500
x=
x=
x=
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