Naming Angles Flashcards

Created by

@PromisingStonehenge

Study Notes

Angle Basics

An angle is created by two rays or line segments that share a common endpoint.
The common endpoint is known as the vertex of the angle.

Types of Angles

Acute Angle: Measures less than 90 degrees, indicating a sharp or narrow angle.
Obtuse Angle: Measures greater than 90 degrees but less than 180 degrees, producing a wider angle.
Right Angle: Exactly measures 90 degrees, often represented by a small square at the vertex in diagrams.
Straight Angle: Measures exactly 180 degrees, forming a straight line.

Angle Relationships

Adjacent Angles: Two angles that share a common side and vertex but do not overlap.

Angle Naming Conventions

Angles can be named using three points. For instance, ABC refers to one way to denote an angle, where the vertex is the middle letter.
Different arrangements of points can denote the same angle; for example, BAC also refers to the same angle as ABC.
Naming can also specify angles in certain color-coded contexts, as seen with angles labeled CEB, BED, BAM, AEC, and GFC, all identified by visual cues like color.

Rays

The two sides of an angle are referred to as rays. Each ray extends infinitely in one direction from the vertex.

Symbol for Right Angle

The symbol 90⁰ indicates an angle that is a right angle.

Description

This quiz helps you learn and recall different types of angles, including acute, obtuse, right, and straight angles. Understand the definitions and characteristics of each angle type to enhance your geometry knowledge.