Answer:
y=95
Step-by-step explanation:
we know that the triangle angles sum is 180°
to find Y you should find x
we are going to find x, we know that a straight angle is 180, to find the x you should:
[tex]120+x=180[/tex]
move 120 to the other side with a negative sign:
[tex]x=180-120\\x=60[/tex]
angle [tex]x=60[/tex]
now we know enough angles to find y:
[tex]25+60+y=180[/tex]
25 is given in the picure and 60 is the x angle while 180 is the sum of a triangle angles, we have to flip the equaton to find y:
[tex]25+60+y=180\\85+y=180\\y=180-85\\y=95[/tex]
