Question

Q3(B) Solve the following questions: (Any 2)​

Answer 1

Answer:

2- Angle DAB= Angle ADE ( Alternate angle)

so Angle RDE= 70°

And Angle RDE+ Angle DER + Angle ERD= 180° (Angle sum property)

>> 70°+40°+ Angle DRE= 180°

ANGLE DRE= 180°-110°

Therefore Angle DRE= 70°

3- Angle B = 70° (Vertically Opposite Angles)

100°+ c = 180° (Linear pair)

c = 180°-100°= 80°

b+c+a= 180°

70° + 80° + a = 180°

a= 180°-150°

a= 30°

so A= 30°

B= 70°

C= 80°