Question

pls give me correct answer with full explaination
it's very urgent​

Answer 1

∠A + ∠B = 180° (sum of adjacent angle of //gm)

1/2∠A +1/2∠B =180× 1/2

1/2∠A +1/2∠B = 90

∠PAB +∠PBA =90

∠PAB+∠PBA +∠APB = 180( angle sum property of triangle)

90+ ∠APB =180

∠APB =180-90

∠APB= 90° #######

ans--D 90°