Question

1. Find the value of a and bin the following
figures​

Answer 1

Answer:

Answer

We know that vertically opposite angle are equal.

So, from figure ∠b=43

o

, ....(vertically opposite angle)

Answer 2

110° = 55° + a {exterior angle property}

110°- 55° = a

55° = a

By angle sum property,

55°+ 55°+ b = 180°

110°+b = 180°

b= 180°- 110°

b= 70°