Lesson: Geometry - 10

Triangles: Lengths of Sides

[Page 10 of 30]

In an equilateral triangle, all three sides are the same length. In an isosceles triangle, two sides are the same length. An isosceles triangle may be right, obtuse, or acute. In a scalene triangle, none of the sides are the same length. A scalene triangle may be right, obtuse, or acute.

Any side of a triangle cannot be shorter than the difference of the other two sides.

This means that if you subtract the length of any one side from another side, the third side will have to be at least as long as this difference. You can see this yourself by drawing some triangles. Try to make this rule not true — you can't do it!

Any side of a triangle cannot be longer than the sum of the other two sides.

If you add any two sides together, the third side will have to be less than that sum.

Example

Back Next

Next to display next topic in the chapter.

Test Prep Lessons With Video Lessons and Explained MCQ

Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.

Quantitative Aptitude Reasoning English General Knowledge Picture Patterns
More for You
MCQ with question Explanations Scholarships and Financial Aid

Geometry

How to solve Geometry questions on math section of the test

Quantitative Comparison

Learn techniques how to crack quantitative comparison section

University Test Pattern

Test pattern of Universities

All in this Category

You may be interested in

Colleges in Rawalpindi

List of major colleges in Rawalpind ...

Colleges in Islamabad

A comprehensive list of major colle ...

LUMS: NOP Financial Aid Program

Find all about LUMS NOP Financial A ...

Social Articles

A list of Articles on Social Issues ...

SAT-Subject Physics

Lessons and practice questions with ...

ISSB Direction Sens Questions

Learn about ISSB Direction Sens Que ...

Universities in Peshawar

A comprehensive list of universitie ...

Ghulam Ishaq Khan Inst of Info & Tech

GIKI is a big name in Engineering s ...

About us

EntryTest.com is a test preparation service for students seeking successful career.

About Disclaimer

Quick Test Prep

NUST NET IBA Karachi SAT LUMS LCAT LSE

 

NTS GAT NTS NAT GMAT GRE ACT

Study Abroad

Education Abroad Business Schools MS in USA