A side of the triangle below has been extended to form an exterior angle of 126°. Find the value of xx. 104° 126° x°
The sum of the exterior angles of any triangle is always 360°.
We know that one exterior angle is 126° and the other two interior angles adjacent to it add up to 180° (since the sum of the interior angles of a triangle is 180°).
Therefore, x° + 104° = 180°
x° = 76°
So, the value of x is 76°.