Topic 4: Triangle Congruence

Flashcard
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Mathematics
•
10th Grade
•
Hard
+3
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1.
FLASHCARD QUESTION
Front
What is a midsegment in a triangle?
Back
A midsegment is a line segment that connects the midpoints of two sides of a triangle. It is parallel to the third side and its length is half the length of that side.
2.
FLASHCARD QUESTION
Front
What is the Triangle Congruence Postulate?
Back
The Triangle Congruence Postulate states that if two triangles have two sides and the included angle equal to two sides and the included angle of another triangle, then the triangles are congruent (SAS).
Tags
CCSS.HSG.SRT.B.5
3.
FLASHCARD QUESTION
Front
What does AAS stand for in triangle congruence?
Back
AAS stands for Angle-Angle-Side, which is a criterion for triangle congruence stating that if two angles and a non-included side of one triangle are equal to two angles and the corresponding non-included side of another triangle, then the triangles are congruent.
Tags
CCSS.HSG.SRT.B.5
4.
FLASHCARD QUESTION
Front
What is the significance of corresponding angles in parallel lines?
Back
Corresponding angles are equal when a transversal crosses two parallel lines, which is a key concept in proving triangles congruent.
Tags
CCSS.8.G.A.5
5.
FLASHCARD QUESTION
Front
What is the definition of vertical angles?
Back
Vertical angles are the angles opposite each other when two lines intersect. They are always equal.
Tags
CCSS.7.G.B.5
6.
FLASHCARD QUESTION
Front
What is the purpose of a proof in geometry?
Back
A proof is a logical argument that uses definitions, properties, and previously proven statements to demonstrate the truth of a geometric statement.
7.
FLASHCARD QUESTION
Front
What does the term 'congruent' mean in geometry?
Back
Congruent means that two figures have the same shape and size, and can be superimposed on each other.
Tags
CCSS.8.G.A.2
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