What is the sum of the interior angles of a triangle?
Angle Pair & Triangle Sum

Flashcard
•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The sum of the interior angles of a triangle is always 180°.
2.
FLASHCARD QUESTION
Front
What are supplementary angles?
Back
Supplementary angles are two angles that add up to 180°.
3.
FLASHCARD QUESTION
Front
What are vertical angles?
Back
Vertical angles are the angles opposite each other when two lines intersect, and they are always congruent.
4.
FLASHCARD QUESTION
Front
What is the measure of each angle in an equilateral triangle?
Back
Each angle in an equilateral triangle measures 60°.
5.
FLASHCARD QUESTION
Front
What are complementary angles?
Back
Complementary angles are two angles that add up to 90°.
6.
FLASHCARD QUESTION
Front
If one angle measures 70°, what is the measure of its supplementary angle?
Back
The supplementary angle measures 110° (180° - 70° = 110°).
7.
FLASHCARD QUESTION
Front
If two angles are complementary and one measures 30°, what is the measure of the other angle?
Back
The other angle measures 60° (90° - 30° = 60°).
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