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Interactive, free online geometry tool from GeoGebra: create triangles, circles, angles, transformations and much more!
Learn and practice about different types of angles with an interactive online protractor tool. Explore angle problems, types, values and properties with various modes and controls.
Learn about different types of angles, how to name them and how to measure them. See examples of acute, obtuse, right, straight and reflex angles, and how to label them with letters or shapes.
An angle describes how two intersecting straight lines (also called legs) are relative to each other. The larger the angle, the greater the distance between the lines as you move away from the point of intersection. This applies up to an angle of 90 or 180 degrees (°).
In the given diagram below, OA is the terminal side. Types of Angles. Based on their measurements, here are the different types of angles: An acute angle measures less than 90° at the vertex. An obtuse angle is between 90° and 180°. A right angle precisely measures 90° at the vertex. An angle measuring exactly 180° is a straight angle.
Learn about angles, their types, properties, and applications. Find definitions, examples, exercises, and interactive diagrams to help you understand and explore angles.
Math. Geometry (all content) Unit 2: Angles. About this unit. In this topic, we will learn what an angle is and how to label, measure and construct them. We will also explore special types of angles. Angle introduction. Learn. Angles: introduction. Naming angles. Angle basics review. Practice. Angle basics. 4 questions. Practice. Name angles.
