What is the sum of the interior angles of a triangle?
Interior and Exterior Angles of Triangles

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•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The sum of the interior angles of a triangle is 180 degrees.
2.
FLASHCARD QUESTION
Front
What are remote interior angles in relation to an exterior angle?
Back
Remote interior angles are the two interior angles that are not adjacent to the exterior angle.
3.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90 degrees, what type of triangle is it?
Back
It is a right triangle.
4.
FLASHCARD QUESTION
Front
What is the relationship between the exterior angle and the remote interior angles?
Back
The exterior angle is equal to the sum of the two remote interior angles.
5.
FLASHCARD QUESTION
Front
How do you calculate the measure of an unknown angle in a triangle?
Back
You can calculate the measure of an unknown angle by subtracting the sum of the known angles from 180 degrees.
6.
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.
7.
FLASHCARD QUESTION
Front
If angle A is 40 degrees and angle B is 60 degrees, what is angle C in triangle ABC?
Back
Angle C is 80 degrees (180 - 40 - 60 = 80).
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