What is the sum of the interior angles of a triangle according to the Triangle Sum Theorem?
Triangle Inequality Theorem: Determining if Angles and Side Measures Form a Triangle

Interactive Video
•
Mathematics
•
10th - 12th Grade
•
Medium
Quizizz Content
Used 2+ times
FREE Resource
Read more
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
90 degrees
360 degrees
270 degrees
180 degrees
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If three angles add up to 180 degrees, what can be concluded about these angles?
They form a square
They form a triangle
They form a pentagon
They form a hexagon
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which theorem helps determine if three side lengths can form a triangle?
Converse Theorem
Triangle Sum Theorem
Triangle Inequality Theorem
Pythagorean Theorem
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the Triangle Inequality Theorem, what must be true for any two sides of a triangle?
Their sum must be less than the third side
Their sum must be twice the third side
Their sum must be equal to the third side
Their sum must be greater than the third side
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the sides of a triangle are 2, 14, and 18, can they form a triangle?
Yes, because 2 + 18 is greater than 14
No, because 14 + 18 is not greater than 2
Yes, because all sides are positive
No, because 2 + 14 is not greater than 18
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following sets of side lengths can form a triangle?
5, 5, 10
3, 4, 8
6, 7, 12
1, 2, 3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of adding the sides 8, 9, and 3 to check if they form a triangle?
They do not form a triangle
They form a triangle because 9 + 3 > 8
They form a triangle because 8 + 9 > 3
They form a triangle because 8 + 3 > 9
Similar Resources on Quizizz
8 questions
Triangle Sum Theorem and Exterior Angle Theorem

Interactive video
•
10th - 12th Grade
6 questions
Using the Converse of the Pythagorean Theorem

Interactive video
•
10th - 12th Grade
6 questions
Determine if the sides of a triangle produce a right triangle ex 1

Interactive video
•
11th Grade - University
6 questions
How to use the converse of Pythagorean Theorem to determine if a triangle is right angled

Interactive video
•
11th Grade - University
6 questions
Determine if the sides of a triangle produce a right triangle ex 1

Interactive video
•
11th Grade - University
2 questions
Determine if the sides of a triangle produce a right triangle ex 1

Interactive video
•
11th Grade - University
2 questions
How to use the converse of Pythagorean Theorem to determine if a triangle is right angled

Interactive video
•
11th Grade - University
6 questions
How to determine if the three sides make up a triangle

Interactive video
•
11th Grade - University
Popular Resources on Quizizz
15 questions
Multiplication Facts

Quiz
•
4th Grade
25 questions
SS Combined Advisory Quiz

Quiz
•
6th - 8th Grade
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
40 questions
SOL: ILE DNA Tech, Gen, Evol 2025

Quiz
•
9th - 12th Grade
20 questions
NC Universities (R2H)

Quiz
•
9th - 12th Grade
15 questions
June Review Quiz

Quiz
•
Professional Development
20 questions
Congruent and Similar Triangles

Quiz
•
8th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade
Discover more resources for Mathematics
40 questions
Week 4 Student In Class Practice Set

Quiz
•
9th - 12th Grade
25 questions
Triangle Inequalities

Quiz
•
10th - 12th Grade
10 questions
Right Triangles: Pythagorean Theorem and Trig

Quiz
•
11th Grade
45 questions
Week 3.5 Review: Set 1

Quiz
•
9th - 12th Grade
17 questions
High School Survival Guide

Lesson
•
9th - 12th Grade