7th Grade Triangle Inequality Quizzes, Questions & Answers

7th Grade

Top Trending Triangle Inequality Quizzes

Triangle Inequality: Basics and Validity Checks

Are you ready to explore how triangles really work? In this quiz, you’ll learn the simple rule that decides whether three sides can form a triangle. You’ll test different sets of side lengths, spot impossible...

Questions: 20 | Attempts: 29 | Last updated: Jan 16, 2026

Sample Question 1
Which of the following sets of side lengths can form a triangle?

2, 3, 6

10, 3, 14

7, 2, 9

4, 5, 8

Sample Question 2
If two sides of a triangle are 7 and 10, which of the following could be the third side?

3

12

17

18

Sample Question 3
A triangle has side lengths 5 and 8. What is the greatest possible integer length for the third side?

12

13

14

15

Recent Triangle Inequality Quizzes

Mixed Applications of the Triangle Inequality

Questions: 20 | Attempts: 14 | Last updated: Jan 16, 2026

Sample Question
Which of these sets can form a triangle?

2, 3, 6

4, 7, 12

5, 9, 13

8, 10, 194

Third Side Ranges and Edge Cases

Questions: 20 | Attempts: 11 | Last updated: Jan 16, 2026

Sample Question
A triangle has sides 8 and 5. Which of the following could be the third side?

14

12

20

2

Triangle Inequality in Real Situations

Questions: 20 | Attempts: 15 | Last updated: Jan 16, 2026

Sample Question
Maria wants to build a triangular garden with side lengths 8 ft, 12 ft, and 5 ft. Will these dimensions work?

Yes, because 8 + 5 > 12

No, because 8 + 5 = 12

Yes, because 12 + 5 < 8

No, because 8 + 12 < 5

Triangle Inequality Trivia Quiz

Questions: 10 | Attempts: 531 | Last updated: Oct 15, 2025

Sample Question
Triangle inequality is a theorem about which of the following?

Distance

Trigonometric values

Triangle properties

Heights