Question

the measure of angle of triangle arc (x-20),(x-40),x find the measure of each angles​

Answer 1

Step-by-step explanation:

j3jiei3jb3j3i3jwnwnwkk2nwjwjwhwhw

Answer 2

1st angle = x°

2nd angle (x - 20)°

3rd angle = (x-40)°

So, an equation will be formed

x° + x° - 20° + x° - 40° = 180°

regrouping the terms in LHS ,

we have,

x° + x° + x° - 20° - 40° = 180°  

3x° - 60° = 180°

3x = 180° + 60°

3x = 240°  

x = 80

So,

1st angle = x = 80°

2nd angle = x -20° = 80° - 20° = 60°

3rd angle = x - 40° = 80° - 40° = 40°

Thus,

the angles of the given triangle 80° , 60° and 40°