Triangle Sum Theorem and Exterior Angle Theorem

Flashcard
•
Mathematics
•
8th - 10th Grade
•
Hard
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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.
2.
FLASHCARD QUESTION
Front
If one angle of a triangle is 90 degrees, what can you say about the other two angles?
Back
The other two angles must sum to 90 degrees, making the triangle a right triangle.
3.
FLASHCARD QUESTION
Front
What are the measures of the interior angles of a triangle with angles 9x + 4, 97, and 4x + 1?
Back
The measures are 97, 58, and 25 degrees.
4.
FLASHCARD QUESTION
Front
What is an exterior angle of a triangle?
Back
An exterior angle is formed by one side of a triangle and the extension of an adjacent side.
5.
FLASHCARD QUESTION
Front
What is the relationship between an exterior angle and the remote interior angles?
Back
The exterior angle is equal to the sum of the measures of the two remote interior angles.
6.
FLASHCARD QUESTION
Front
If the exterior angle of a triangle is 52 degrees, and the remote interior angles are 4y - 4 and 3y, what are the measures of the remote interior angles?
Back
The measures are 24 degrees and 28 degrees.
7.
FLASHCARD QUESTION
Front
What is the formula to find the measure of the missing angle in a triangle if two angles are known?
Back
The measure of the missing angle can be found using the formula: Missing Angle = 180 - (Angle 1 + Angle 2).
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