EXPLANATION:
To find the value of the variable x we must do the following:
Since the internal angles of a triangle must add up to 180 so we add the two internal angles given and then we must subtract 180.
[tex]\begin{gathered} 74+35=180 \\ 109=180 \\ 180-109 \\ 71 \\ \text{ANSWER: x is equal to 71} \end{gathered}[/tex]
Now we must find the value of y, then we must do the following:
[tex]\begin{gathered} As\text{ y is }opposite\text{ angle }to\text{ x ; then }must\text{ have }the\text{ same value }of\text{ x} \\ y=71 \end{gathered}[/tex]
