Exterior Angles of Triangles
Flashcard
•
Mathematics
•
8th Grade
•
Hard
Standards-aligned
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15 questions
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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 remote interior angles.
Tags
CCSS.8.G.A.5
2.
FLASHCARD QUESTION
Front
What is the relationship between an exterior angle and its adjacent interior angle?
Back
The exterior angle is equal to the sum of the two remote interior angles, and it is supplementary to the adjacent interior angle.
Tags
CCSS.8.G.A.5
3.
FLASHCARD QUESTION
Front
If one interior angle of a triangle is 40 degrees and another is 70 degrees, what is the measure of the exterior angle adjacent to the 70-degree angle?
Back
The exterior angle is 110 degrees (180 - 70 = 110).
Tags
CCSS.8.G.A.5
4.
FLASHCARD QUESTION
Front
What are remote interior angles?
Back
Remote interior angles are the two interior angles of a triangle that are not adjacent to a given exterior angle.
Tags
CCSS.8.G.A.5
5.
FLASHCARD QUESTION
Front
How do you calculate the measure of an exterior angle?
Back
To calculate the measure of an exterior angle, add the measures of the two remote interior angles.
Tags
CCSS.8.G.A.5
6.
FLASHCARD QUESTION
Front
If angle A is 50 degrees and angle B is 60 degrees, what is the measure of the exterior angle at vertex C?
Back
The exterior angle at vertex C is 110 degrees (50 + 60 = 110).
Tags
CCSS.8.G.A.5
7.
FLASHCARD QUESTION
Front
What is the sum of the exterior angles of any polygon?
Back
The sum of the exterior angles of any polygon is always 360 degrees.
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