Question

exam revision plzz help
x = ?​

Answer 1

Answer:

we know that sum of all angles of triangle is equal to 180degree

therefore

angle b +angle a+ angle c= 180 degree

40 +20 +x=180

x=180-60

x=120°

Answer 2

Answer:

120°

step by step explanation:

A + B + C = 180° (angle sum property of triangle)

20° + 40° + x = 180°

60° +x = 180°

x = 180° - 60°

x = 120°

hope it helps....

stay home stay safe