Answer: x = [tex]52^{0}[/tex]
Step-by-step explanation:
The exterior angle of a triangle = sum of the opposite interior angle.
The interior angles given are : [tex]34^{0}[/tex] and [tex]90^{0}[/tex]
Which are opposite to x + 72
Therefore :
x + 72 = [tex]34^{0}[/tex] + [tex]90^{0}[/tex]
x + 72 = [tex]124^{0}[/tex]
x = [tex]124^{0}[/tex] - [tex]72^{0}[/tex]
x = [tex]52^{0}[/tex]
