What are vertical angles?
11/05 Warm-Up (4.5)

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Mathematics
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Vertical angles are the angles opposite each other when two lines intersect. They are always congruent.
2.
FLASHCARD QUESTION
Front
What does ASA stand for in triangle congruence?
Back
ASA stands for Angle-Side-Angle, a theorem that states if two angles and the included side of one triangle are equal to two angles and the included side of another triangle, then the triangles are congruent.
3.
FLASHCARD QUESTION
Front
What is the definition of congruent triangles?
Back
Congruent triangles are triangles that are identical in shape and size, meaning their corresponding sides and angles are equal.
4.
FLASHCARD QUESTION
Front
What theorem can be used to prove triangles are congruent if two sides and the included angle are known?
Back
The SAS (Side-Angle-Side) theorem can be used to prove triangles are congruent if two sides and the included angle are known.
5.
FLASHCARD QUESTION
Front
What is the significance of the included angle in triangle congruence?
Back
The included angle is the angle formed between two sides of a triangle. It is crucial in the ASA and SAS congruence theorems.
6.
FLASHCARD QUESTION
Front
What is the definition of complementary angles?
Back
Complementary angles are two angles whose measures add up to 90 degrees.
7.
FLASHCARD QUESTION
Front
What is the definition of supplementary angles?
Back
Supplementary angles are two angles whose measures add up to 180 degrees.
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