Triangle Sum and Exterior Angle Theorems
Flashcard
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Triangle Sum Theorem?
Back
The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.
Tags
CCSS.8.G.A.5
2.
FLASHCARD QUESTION
Front
What are the exterior angles of a triangle?
Back
Exterior angles are formed by one side of a triangle and the extension of an adjacent side.
Tags
CCSS.8.G.A.5
3.
FLASHCARD QUESTION
Front
What is the relationship between an exterior angle and the remote interior angles?
Back
An exterior angle is equal to the sum of the two remote interior angles.
Tags
CCSS.8.G.A.5
4.
FLASHCARD QUESTION
Front
If one angle of a triangle is 59° and another is 51°, what is the measure of the third angle?
Back
The third angle is 70°, calculated as 180° - (59° + 51°).
Tags
CCSS.8.G.A.5
5.
FLASHCARD QUESTION
Front
How do you set up an equation to find an unknown angle in a triangle?
Back
Set up the equation as x + angle1 + angle2 = 180°, where x is the unknown angle.
Tags
CCSS.8.G.A.5
6.
FLASHCARD QUESTION
Front
What are remote interior angles in relation to an exterior angle?
Back
Remote interior angles are the two angles inside the triangle that are not adjacent to the exterior angle.
Tags
CCSS.8.G.A.5
7.
FLASHCARD QUESTION
Front
If an exterior angle measures 84°, what is the sum of the remote interior angles?
Back
The sum of the remote interior angles is 84°, as the exterior angle equals their sum.
Tags
CCSS.8.G.A.5
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