Question

Please solve the a part and give detailed explanation​

Answer 1

Answer:

Step-by-step explanation:

As Triangle ABC is an Isosceles triangle so its base angles should be equal

let us suppose the angle at B and C be y

y + y + 60= 180      ( angle sum of a triangle ABC)

2y = 180 -60

y = 60

As y is bisected by BP so it will be after bisection 60 /2  = 30 and by property of transversal AP parallel to BC

x = 30 Alternate interior angles