Answer :
Answer:
x= 175 degrees
Step-by-step explanation:
All angles add up to 360 degrees. Thus:
(x-20) + (x-10) + 40 = 360.
x - 20 + x - 10 + 40 = 360.
Combine like terms.
2x + 10= 360.
thus:
2x= 350
x = 175
Answer:
x= 175 degrees
Step-by-step explanation:
All angles add up to 360 degrees. Thus:
(x-20) + (x-10) + 40 = 360.
x - 20 + x - 10 + 40 = 360.
Combine like terms.
2x + 10= 360.
thus:
2x= 350
x = 175