Question

Find the values of the variables in the following figures.
160°
a.
b.
aº
dº
co
bº
80°Laº
С c
bo​

Answer 1

a° = 180°- 80°(sum of angles on a straight line)

= 100°

d° = 80° ( vertically opposite angles)

c° = 80° ( corresponding angles are always equal)

b = 180°- 80° = 100°

(sum of angles on a straight line is 180°)