Page 2 - ln1

 1) Interior Angles  1) ∠6, ∠5, ∠4, ∠3
 2) Exterior Angles
 2) ∠7,∠8,∠1,∠2
 3) Pairs of
Corresponding Angles  3) ∠1 and ∠5, ∠2 and ∠6,

Some of the ∠3 and ∠7, ∠4 and ∠8
angles made by  4) Pairs of Alternate  4) ∠3 and ∠6, ∠4 and ∠5
transversal.
Interior Angles
 5) Pairs of Alternate
 5) ∠1 and ∠8, ∠2 and ∠7
Exterior Angles
 6) Pairs of Interior  6) ∠3 and ∠5, ∠4 and ∠6

Angles on the same

side of the transversal
( or Co-interior angles)

 The two lines which
never meet with each
other are called
Transversal of Parallel Lines.
Parallel Lines
 If we have a
transversal on two
parallel lines then-

FIG - 2

In FIG – 2
∠3 = ∠7
1) All the pairs of
corresponding angles ∠4 = ∠8
are equal.
∠1 = ∠5

∠2 = ∠6