Interior and exterior angles of triangles

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•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a triangle?
Back
The sum of the interior angles of a triangle is always 180 degrees.
2.
FLASHCARD QUESTION
Front
Define 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.
3.
FLASHCARD QUESTION
Front
What is the relationship between an exterior angle and the two remote interior angles?
Back
The exterior angle is equal to the sum of the two remote interior angles.
4.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90 degrees, what type of triangle is it?
Back
It is a right triangle.
5.
FLASHCARD QUESTION
Front
What is the measure of each interior angle in an equilateral triangle?
Back
Each interior angle in an equilateral triangle measures 60 degrees.
6.
FLASHCARD QUESTION
Front
How do you find the measure of an unknown angle in a triangle?
Back
Subtract the sum of the known angles from 180 degrees.
7.
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.
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