Answer:
A
Step-by-step explanation:
Because when you are doing a reflection, You sort of see if you can fold it and it will still be the same. If you put the first triangle on the second one, they have the same shape.
Hope this helps :)
a
because we can clearly see it
The algebraic expression is:
E = t + 10
The answer is 12!
Hope this helps! :D
------The answers got taken down :(------
il faut passer les x de l'autre voter comme x=9+5=14 donc x=14 je pense que c'est ça mais je suis pas sûr et tu fait pareil pour l'autre
x=110° y=140°
x=180°-70°
x=110°
y=x+30°
y=110°+30°
y=140°
