Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

9 Questions

100 Views

Triangles Flashcards

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

How can triangles be classified?

By their sizes

By their sides (correct)

By their colors

By their angles (correct)

What is a right triangle?

A triangle that has only one right angle

What defines an acute triangle?

A triangle that has three angles less than 90°

What characterizes an obtuse triangle?

A triangle that has one angle greater than 90° Signup and view all the answers

What is an equiangular triangle?

A triangle that has three congruent angles Signup and view all the answers

What is an equilateral triangle?

A triangle that has three congruent sides Signup and view all the answers

What is an isosceles triangle?

A triangle that has two congruent sides Signup and view all the answers

What is a scalene triangle?

A triangle that has no congruent sides Signup and view all the answers

What does the Triangle Inequality Theorem state?

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side. Signup and view all the answers

Study Notes

Classification of Triangles

Triangles can be organized based on their sides or angles.

Types of Triangles by Angles

Right Triangle: Contains exactly one right angle (90°).
Acute Triangle: All three angles are less than 90°.
Obtuse Triangle: Contains one angle that is greater than 90°.

Types of Triangles by Sides

Equiangular Triangle: All three angles are equal, implying all sides are congruent, creating a specific type where angles measure 60° each.
Equilateral Triangle: Has three sides of equal length; all angles are also congruent (60°).
Isosceles Triangle: Features two sides that are equal in length, resulting in two equal angles opposite those sides.
Scalene Triangle: No sides are equal; therefore, all three angles are different.

Triangle Inequality Theorem

The principle states that the sum of the lengths of any two sides must exceed the length of the third side, ensuring that a triangle can exist with the given side lengths.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Explore the different classifications of triangles with these flashcards. Learn about right, acute, obtuse, and equiangular triangles, including their unique properties and definitions. Perfect for students looking to deepen their understanding of triangle geometry.