What does the Triangle Sum Theorem state?
Triangle Sum Theorem

Flashcard
•
Mathematics
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The sum of the interior angles of a triangle is always 180 degrees.
2.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90 degrees, what can you say about the other two angles?
Back
The other two angles must sum to 90 degrees.
3.
FLASHCARD QUESTION
Front
What is an exterior angle of a triangle?
Back
An exterior angle is formed by one side of the triangle and the extension of an adjacent side.
4.
FLASHCARD QUESTION
Front
How do you calculate the measure of an exterior angle?
Back
The measure of an exterior angle is equal to the sum of the two remote interior angles.
5.
FLASHCARD QUESTION
Front
If two angles of a triangle are 50 degrees and 60 degrees, what is the measure of the third angle?
Back
The third angle is 70 degrees, calculated as 180 - (50 + 60).
6.
FLASHCARD QUESTION
Front
What is a remote interior angle?
Back
A remote interior angle is an interior angle of a triangle that is not adjacent to a given exterior angle.
7.
FLASHCARD QUESTION
Front
If one angle of a triangle is 120 degrees, what is the maximum possible measure of the other two angles?
Back
The maximum possible measure of the other two angles is 30 degrees, since they must sum to 60 degrees.
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