9.7: Triangle Classification by Angles Difficulty Level: At Grade Created by: CK-12 Estimated2 minsto complete % Progress Practice Triangle Classification by Angles MEMORY METER This indicates how strong in your memory this concept is Practice Progress Estimated2 minsto complete % Estimated2 minsto complete % Practice Now MEMORY METER This indicates how strong in your memory this concept is Share Add to Library Turn In Read Practice Resources Details Loading... Notes/Highlights Having trouble? Report an issue. Color Highlighted Text Notes Show More Vocabulary Language: English ▼ English Acute Triangle An acute triangle has three angles that each measure less than 90 degrees. Equilateral Triangle An equilateral triangle is a triangle in which all three sides are the same length. Obtuse Triangle An obtuse triangle is a triangle with one angle that is greater than 90 degrees. Right Triangle A right triangle is a triangle with one 90 degree angle. Triangle A triangle is a polygon with three sides and three angles. Image Attributions Show Hide Details Description Learn how to classify different types of triangles by their angles. Learning Objectives None Difficulty Level: At Grade Authors: Jen Kershaw Kimberly Hopkins Tags: acute triangle equiangular triangle MAT.GEO.341.L.1 (3 more) obtuse triangle right triangle triangle Subjects: mathematics Geometry math Concept Nodes: MAT.GEO.341 (Triangle Classification by Angles) Grades: 6 Date Created: Oct 29, 2012 Last Modified: Sep 04, 2016 Vocabulary None Save or share your relevant files like activites, homework and worksheet.To add resources, you must be the owner of the Modality. Click Customize to make your own copy.