Answer:
a=45 degrees
Step-by-step explanation:
So we know in a triangle there is 180 degrees.
1 of the angle we know is 90 degree
angle B is the same as angle A
So the equation is 90+2a=180 solve it u get 45 degree
[tex]\sf (BA)^2=(BC)^2+(AC)^2[/tex]
[tex]\sf (BA)^2=(3)^2+(3)^2[/tex]
[tex]\sf (BA)^2=\sqrt{9+9}[/tex]
[tex](\sf BA)^2=\sqrt{18}[/tex]
[tex]\sf BA=\sqrt{18}[/tex]
Hope it helps!
