What are congruent triangles?
Congruent Triangles

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Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Triangles that have the same size and shape, meaning their corresponding sides and angles are equal.
2.
FLASHCARD QUESTION
Front
What is the Reflexive Property in geometry?
Back
A property stating that any geometric figure is congruent to itself, e.g., AB ≅ AB.
3.
FLASHCARD QUESTION
Front
What is the Transitive Property of congruence?
Back
If triangle A is congruent to triangle B, and triangle B is congruent to triangle C, then triangle A is congruent to triangle C.
4.
FLASHCARD QUESTION
Front
How do you classify triangles by their angles?
Back
Triangles can be classified as acute (all angles < 90°), right (one angle = 90°), or obtuse (one angle > 90°).
5.
FLASHCARD QUESTION
Front
If ∆ABC ≅ ∆XYZ, what can we say about their corresponding sides?
Back
AB ≅ XY, BC ≅ YZ, and AC ≅ XZ.
6.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a triangle?
Back
The sum of the interior angles of a triangle is always 180°.
7.
FLASHCARD QUESTION
Front
How do you solve for an unknown angle in a triangle?
Back
Subtract the sum of the known angles from 180° to find the unknown angle.
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