Exterior Angles of Triangles

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
Wayground Content
FREE Resource
Student preview

15 questions
Show all answers
1.
FLASHCARD QUESTION
Front
What is an exterior angle of a triangle?
Back
An exterior angle of a triangle is formed by one side of the triangle and the extension of an adjacent side. It is equal to the sum of the two opposite interior angles.
2.
FLASHCARD QUESTION
Front
State the Exterior Angle Theorem.
Back
The Exterior Angle Theorem states that the measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.
3.
FLASHCARD QUESTION
Front
If one interior angle of a triangle is 40° and another is 60°, what is the measure of the exterior angle at the vertex of the 60° angle?
Back
The exterior angle is 40° + 60° = 100°.
4.
FLASHCARD QUESTION
Front
How do you find the measure of a missing angle in a triangle using exterior angles?
Back
To find a missing angle, use the Exterior Angle Theorem: the exterior angle equals the sum of the two opposite interior angles.
5.
FLASHCARD QUESTION
Front
What is the relationship between the sum of the interior angles of a triangle and the exterior angles?
Back
The sum of the interior angles of a triangle is always 180°, while the sum of the exterior angles is always 360°.
6.
FLASHCARD QUESTION
Front
If an exterior angle measures 130°, what are the measures of the two opposite interior angles?
Back
The two opposite interior angles must sum to 130°.
7.
FLASHCARD QUESTION
Front
What is the formula to calculate the measure of an exterior angle?
Back
The measure of an exterior angle can be calculated as: Exterior Angle = Interior Angle 1 + Interior Angle 2.
Create a free account and access millions of resources
Similar Resources on Wayground
15 questions
Polygon Angles and Parallelogram Properties

Flashcard
•
9th - 12th Grade
15 questions
6-1 Polygons interior/exterior angles review 12.3.24

Flashcard
•
9th - 12th Grade
15 questions
Angles of Polygons

Flashcard
•
9th - 12th Grade
15 questions
Study guide

Flashcard
•
9th - 12th Grade
15 questions
Parallel Lines

Flashcard
•
9th - 12th Grade
15 questions
Exterior Angle Theorem

Flashcard
•
9th - 12th Grade
15 questions
Polygons

Flashcard
•
9th - 12th Grade
15 questions
Polygons : Interior & Exterior Angles

Flashcard
•
9th - 12th Grade
Popular Resources on Wayground
20 questions
Brand Labels

Quiz
•
5th - 12th Grade
10 questions
Ice Breaker Trivia: Food from Around the World

Quiz
•
3rd - 12th Grade
25 questions
Multiplication Facts

Quiz
•
5th Grade
20 questions
ELA Advisory Review

Quiz
•
7th Grade
15 questions
Subtracting Integers

Quiz
•
7th Grade
22 questions
Adding Integers

Quiz
•
6th Grade
10 questions
Multiplication and Division Unknowns

Quiz
•
3rd Grade
10 questions
Exploring Digital Citizenship Essentials

Interactive video
•
6th - 10th Grade
Discover more resources for Mathematics
20 questions
Distribute and Combine Like Terms

Quiz
•
7th - 9th Grade
12 questions
Graphing Inequalities on a Number Line

Quiz
•
9th Grade
29 questions
CCG 2.2.3 Area

Quiz
•
9th - 12th Grade
15 questions
Two Step Equations

Quiz
•
9th Grade
10 questions
SAT Focus: Geometry

Quiz
•
10th Grade
20 questions
Solving Multi-Step Equations

Quiz
•
10th Grade
15 questions
Solving Literal Equations

Quiz
•
8th - 9th Grade
12 questions
Absolute Value Equations

Quiz
•
9th Grade