Question

If AB is parallel CD, CD is parallel EF and b:c=4:5 then find a,b,c​

Answer 1

Answer:

a=100

b=80

c=100

Step-by-step explanation:

b+c=180°

4x+5x=180

9x=180

x=20°

b=4*20=80

c=5*20=100

and,a=180-b

a=100