Answer:
m∠8 = 49°
Step-by-step explanation:
∠7 and ∠8 are same-side interior angles.
Remember, same-side interior angles are supplementary. This means that the sum of the angles is 180°.
Let's use the variable 'x' to represent the unknown measure of angle ∠8.
[tex]131 +x=180[/tex]
[tex]131-131=0[/tex] (cancels itself out)
[tex]180-131=49[/tex]
[tex]x=49[/tex]
Therefore, the measure of ∠8 is 49°.
