Question

Angles a and b form a linear pair such that a+2b=254° then value of b is
2 points
106°
74°
148°
212°​

Answer 1

a+b=180 =eq1

a+2b=254 =eq2

By subtracting eq2 from eq1,we get value of 'b'

a+2b –a –b =254°–180°

b=74°, Ans.

Answer 2

Answer:

74°

Step-by-step explanation:

1)a+b=180° ........... angles in linear pair

a =180-b

a+2b=254°.......... given

(180-b)+2b=254........ from 1

180+b =254

b= 254-180

b= 74°

Hope it helps you.