400
20
R
659
T
75°
S
R
1
Q
Fig. 6.43
Fig. 6.42
T
6.
P
In Fig. 6.44, the side QR of APQR is produced to
a point S. If the bisectors of Z PQR and
Z PRS meet at point T, then prove that
1
ZQTR = LZQPR.
Q
R
S
Fig. 6.44
6.8 Summary
In this chapter, you have studied the following points:
1. If a ray stands on a line, then the sum of the two adjacent angles so formed is 180° and vice-
versa. This property is called as the Linear pair axiom.
2. If two lines intersect each other, then the vertically opposite angles are equal.
. If a transversal intersects two narallel lines then
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