Answer:
x = 20
<ACD = 113
Step-by-step explanation:
Exterior angle of a triangle is equal to the sum of the interior opposite angles of a triangle
There for,
<CAB + <ABC = <ACD
[tex]2x-9+4x+2 = 5x+13\\6x-7=5x+13\\6x-5x=7+13\\x=20[/tex]
Size of the <ACD
[tex]5x+13\\5*20+13\\100+13\\= 113[/tex]
