Triangle Proofs
Flashcard
•
Mathematics
•
9th - 11th Grade
•
Hard
+2
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the SSA condition in triangle congruence?
Back
SSA (Side-Side-Angle) is NOT a valid test for triangle congruence because it can lead to ambiguous cases where two different triangles can be formed.
Tags
CCSS.8.G.A.2
2.
FLASHCARD QUESTION
Front
What are Vertical Angles?
Back
Vertical angles are the angles opposite each other when two lines intersect. They are always congruent.
Tags
CCSS.7.G.B.5
3.
FLASHCARD QUESTION
Front
What are Alternate Interior Angles?
Back
Alternate interior angles are pairs of angles that lie between two parallel lines and on opposite sides of a transversal. They are congruent.
Tags
CCSS.8.G.A.5
4.
FLASHCARD QUESTION
Front
What is the Hypotenuse-Leg (HL) theorem?
Back
The HL theorem states that if a right triangle has a hypotenuse and one leg that are congruent to the hypotenuse and one leg of another right triangle, then the two triangles are congruent.
Tags
CCSS.HSG.SRT.B.5
5.
FLASHCARD QUESTION
Front
What is the Reflexive Property?
Back
The Reflexive Property states that any geometric figure is congruent to itself. For example, triangle ABC is congruent to triangle ABC.
6.
FLASHCARD QUESTION
Front
What is the SSS condition in triangle congruence?
Back
SSS (Side-Side-Side) states that if all three sides of one triangle are congruent to the three sides of another triangle, then the triangles are congruent.
Tags
CCSS.HSG.SRT.B.5
7.
FLASHCARD QUESTION
Front
What is the SAS condition in triangle congruence?
Back
SAS (Side-Angle-Side) states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the triangles are congruent.
Tags
CCSS.HSG.SRT.B.5
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