Geometry: Angle properties

Angles

These are fundamental properties of geometry, describing the amount of rotation between two intersecting rays or segments. An angle is formed by two rays intersecting or two lines that meet at a point known as the vertex.

Types of angles:

1).The acute angle

This angle known as the acute angle measures more than 0 degrees but less than 90 degrees.

2). The right angle

This angle measures exactly 90° (degrees), no more, no less.

3). Obtuse angle

This angle measures more than 90 degrees but it is less than 180 degrees.

4). Straight line.

This measures exactly 180 degrees. This also appears as a straight line.

5). Reflex angle

This angle measures more than 180 degrees but less than 360 degrees.

6). Full angle

This angle known as the full angle or the revolution angle measures up to exactly 360 degrees. This angle represents a full rotation.

Angle Properties

Angle properties refer to the rules and relationships that govern the measurements and interactions of angles in geometry. As mentioned before, the types of angles that can be found in geometry, we are going to dive deep into the relations and fundamental angle properties:

1). The Complementary Angle

In geometry, complementary angles are two angles whose sum is 90 degrees. For example, If angle a is 20 degrees, then its complement angle b would be 70 degrees because 20 degrees + 70 degrees = 90 degrees.

2). The Supplementary Angle.

Supplementary angles are those angles that sum up to 180 degrees. For example, angle a being 130 degrees and angle b being 50 degrees. They add up to 180 degrees.

3). The Vertically opposite angles.

This angles ae formed when two lines meet each other at a point. They are always equal to each other. In other words when two lines intersect, the angles opposite each other are equal.