Please help me solve the 51st question Long Answer Questions
47. Prove that iftwo lines intersect each other, then the vertically opposite angles are equal
48. If two parallel lines are intersected by a transversal, prove that the
bisectors of rhe interior angles on the same side of transversal intc.sect
each other al right angles.
49. Prove that if arms of an angle are respectively parallel to the arms of
50.
51.
52.
another angle, then the angles are either equal or supplementary.
In Fig. 6.66, PT -L QR and PS is the bisector of ZP. If 260' and
LR 30', find ZTPS.
Fig'"
In Fig. 6.07, bisector of ZB and ZD ofa quadrilateral ABCD meet CD and AB produced at PBiQ
respectively. Prove Z-P + ZQ = — (Z•IBC + ZADC).
Fig 6.67
In Fig. 6å58, show that + 3600.
53. Prove that the sum of the angles ofa triangle is 1800.
SELF-ASSESSMENT TEST
Time : 45 minutes
Fig.
. many triangles can be dra;sn haung
answer
7. In Fig. 6.72,ltli12
S. lnHg.6.73.ifABliCD.APQzTandPK
9. In Ftg- 6.74, lines.4B and CDinters.e€tat
reflex LEOC..
