Question

in the given figure pq\\rs determine angle ABC and angle bac. in which angle pab=87 and angle acs=130​

Answer 1

PAB=ABC.....(alternative angles)

therefore ABC=87°..............(1)

ACS+ACB=180° (linear pair)

ACB=180-130

=50°

ABC+ACB+BAC=180° (angle sum property of triangle)

BAC=180-50-87

=43°.....................(2)