The sum of the measures of two of the angles formed by the intersection of two lines is 50°. Find the measures of the angles. I need four numbers, as in four angles

Respuesta :

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]