Question

in triangle ABC, if angle a-angle b = 42° and angle b-angle c = 21°, then angle b =???​

Answer 1

Answer:

answer is 53 degree

Step-by-step explanation:

a - b = 42

b - c = 21

Hope it will help.......

Have a nice day......

Answer 2

Answer:

in triangle,A+B+C=180°

so,42+X+21=180°

63+X =180

180-63=117°

angle B =117°