Answer:
angle 1=[tex]135[/tex]°
Step-by-step explanation:
to find the angle of 1 you should know angle 2, what is angle 2?
angle [tex]45[/tex]° and angle [tex]1[/tex] are symetrical so they have the same value.
now that we know that angle 2 is equal to [tex]45[/tex]°
then what is angle 1
if the whole line has an angle of [tex]180[/tex]° and angle [tex]45[/tex]°.
so the equation will be :
[tex]45+x=180[/tex]
flip the equation to find [tex]x[/tex]:
[tex]180-45=x[/tex]
[tex]180-45=x\\135=x\\x=[/tex]the angle 1 which we found in the given equation is 135
check if my answer is correct is :
[tex]135+45=180\\180=180[/tex]
my equation is correct
