The supplement of the larger angle is 108°.
Explanation:
Step 1:
If two angles are complementary, the sum of the angles will be equal to 90°.
If two angles are supplementary, the sum of the angles will be equal to 180°.
If angle m and n are complementary, the sum of angles m and n will be 90°.
Also assume angle m is four times the angle n.
So
So
so m is 72° and n is 18°.
Step 2:
Angle m is the larger angle.
Assume angle m and angle o are supplementary.
Angle m + angle o = 180°.
Angle o
So the supplement of the larger angle is 108°.