Question

find the value of b ​

Answer 1

Answer:

a) The value of b is 43° by vertically opposite angle.

b) The value of b is 57° since sum of all three angles is 360°

b) 98° + b + 209° = 360° (Since all the three angles makes a complete angle )

207 + b = 360°

b = 360 - 307

b = 57°

Answer 2

Answer:

a) 43° = b (Vertically opposite angles)

b) 209° + 98° + b = 360° (Sum of angles around a single point)

307° + b = 360°

b = 360° - 307°

b = 53°