An exterior angle of a triangle is 110° and one of its interior opposite angles is 45°, then the other interior opposite angle is
Exterior angle formed when the side of a triangle is produced is equal to the sum of the interior opposite angles.
Exterior angle = 110°
One of the interior opposite angles = 45°
Let the other interior opposite angle = x
110° = 45° + x
x = 110° – 45°
x = 65°
Therefore, the other interior opposite angle is 65°.