Question

In the given figure 1 || m. Find the values of a, b and c.


give the answer quickly​

Answer 1

Answer:

(i) b=120° (corresponding angle)

c=40° ( corresponding angle)

a+b+c=180° (by linear angle theorem)

a+ 120+40=180

a+160=180

a=180-160

a=20°

(ii) a=45° (corresponding angle)

c=55° (corresponding angle)

a+b+c=180° (by linear angle theorem)

45+b+55=180

b+100=180

b=180-100

b=80°