They form supplementary angles in relation to the level surface from which they rise. A wheel chair rampĪ wheelchair ramp is used to make it easier for people using wheelchairs to move from one level to another. They are therefore adjacent supplementary angles. They also have a common vertex (the T-junction). The angles share a common arm (the road that ends at the T-junction). Supplementary angles are formed at the point where the roads intersect. A tree branch growing from a tree trunkĪ T-junction is formed when two roads intersect. These angles share a common arm (the door) and a common vertex (the door hinge). When the door is opened partially, angles are formed on either side of the door at the point where the door is hinged to the wall. If you were to draw a line along a wall with a closed door, you would have a straight line. Here are real-life examples of supplementary angles 1. However, the sum of these angles is 180 degrees. They do not lie next to each other and may not be part of the same line segment. No-adjacent supplementary angles: These are supplementary angles that do not share a common vertex (corner) or a common arm.They therefore lie next to each other and are part of the same line segment. Adjacent supplementary angles: These are supplementary angles that share a common arm (or side) as well as a common corner (vertex).Any two angles that form a straight line when they are joined together Types of Supplementary Angles.Any two angles that add up or whose sum is 180 degrees.Thus, any two angles that add up to 180 degrees can be supplementary.

However, they do not have to be next to each other in order to be supplementary. These angles, therefore, form a straight line when joined together. Supplementary angles in geometry are angles whose sum is 180 degrees. Angles make up part of many structures and shapes in the world around us. Angles are those spaces formed between two intersecting lines.

A supplementary angle