Answer:
The bottom left square of the triangle in 90 degrees always so take 90 + 40 giving you 130,
a Triangle has 180 degrees in total so 180 -130 = 50 degrees for the last side
[tex]50[/tex]
Step-by-step explanation:
The missing(?) —> x
[tex]90 + 40 + x = 180 \\ 130 + x = 180 \\ x = 180 - 130 \\ x = 50[/tex]
I hope I helped you^_^
