Complementary and Adjacent Angles
Complementary angles and adjacent angles are two different concepts in geometry.
Complementary angles are two angles that add up to 90°. In other words, if you have two angles, angle A and angle B, and they are complementary, then A + B = 90°. Complementary angles can be part of the same or different geometric figures; they don’t have to share a common side or vertex.
Adjacent angles are two angles that share a common vertex and a common side. They are next to each other and have a common side but don’t necessarily have to add up to any specific angle measure like complementary angles. Adjacent angles can be part of various geometric shapes, such as lines, polygons, or other figures.
However two angles can be complementary and adjacent as well. For Example if two adjacent angles sum up to 90° then we call that adjacent angles to be complementary as well.
What is Adjacent Angle in Geometry?
Adjacent Angles are the angles that have a common vertex, a common arm, and the rest two arms lie on either side of the common arm. Angles are particularly important in geometry as they help define and understand different geometric figures and their characteristics. Geometry is a branch of mathematics that focuses on shapes, sizes, and angles. A key concept within geometry is adjacent angles. Understanding adjacent angles helps us grasp the geometry of lines, polygons, and other shapes.
In this particular article, we are going to learn about adjacent angles, their definitions, their properties, and some examples and we will also practice some questions on it.
Table of Content
- What is an Adjacent angle?
- Properties of Adjacent Angle
- Adjacent Angles in Parallelogram
- Supplementary Adjacent Angles
- Complementary and Adjacent Angles
- Non-adjacent angles
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