What is the Exterior Angle Theorem?
Exterior Angle Theorem

Flashcard
•
Mathematics
•
8th - 9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
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 remote interior angles.
2.
FLASHCARD QUESTION
Front
What are remote interior angles?
Back
Remote interior angles are the two angles inside a triangle that are not adjacent to a given exterior angle.
3.
FLASHCARD QUESTION
Front
If angle d is an exterior angle, which angles can be added to find its measure?
Back
The measures of the two remote interior angles.
4.
FLASHCARD QUESTION
Front
Solve for x: 42 + 8x = 2 + 12x
Back
x = 3
5.
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°.
6.
FLASHCARD QUESTION
Front
If angle a = 40° and angle b = 60°, what is the measure of the exterior angle formed at angle c?
Back
The exterior angle at angle c is 100° (40° + 60°).
7.
FLASHCARD QUESTION
Front
Which two angles are the remote interior angles to Angle W?
Back
Angle X and Angle Y.
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