Question

Find the values of a and b in the following figures.​

Answer 1

Answer:

a=q=110 congurent angle

q+b+r =180

110+b+30

b=180-140

b=40

Answer 2

Answer:

∠a+110°=180°(linear pair)

∠a=180-110°

∠a=70°

∠b+110°+30°=180°

∠b+140°=180°

∠b=180-140°

∠b=40°