An exterior angle of triangle is 80∘ and the interior opposite angles are in the ratio 1:3. The measure of each interior opposite angle is

An exterior angle of triangle is 80∘ and the interior opposite angle

1.	An exterior angle of triangle is 80∘ and the interior opposite angles are in the ratio 1:3. The measure of each interior opposite angle is
Answer» An exterior angle of triangle is $80^{\circ}$ and the interior opposite angles are in the ratio $1 : 3$ . The measure of each interior opposite angle is