Question

find angle a,b and c​

Answer 1

Step-by-step explanation:

4b+70+b =180 because it's straight angle

so

5b+70=180

5b=180-70=110

b=110/5

b= 22

4b and a are vertically opposite angles so

a=4b =4*22= 88

same way 70+b and 2c are vertically opposite angles

so 70+b =2c

70+22=2c

2c=92

c=92/2= 46

c=46