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°.

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