Answer:
25°, 25°, 155° and 155°
Step-by-step explanation:
Let's call the four angles a, b, c and d.
These angles are supplementary and vertically opposite in pairs, so we have:
[tex]a = c[/tex]
[tex]b = d[/tex]
[tex]a + b = 180\°[/tex]
[tex]c + d = 180\°[/tex]
If the sum of two of these angles is 50°, these angles need to be the vertically opposite ones (a and c or b and d). So we have that:
[tex]a + c = 50\°[/tex]
Substituting 'c' for 'a', we have:
[tex]2a = 50[/tex]
[tex]a = 25\°[/tex]
Now we can find the value of the three other angles:
[tex]c = a = 25\°[/tex]
[tex]b = 180 - a = 155\°[/tex]
[tex]d = 180 - c = 155\°[/tex]