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Triangles & Congruence Flashcards

7 cards from real Geometry practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Triangles & Congruence flashcards as text

  1. Two triangles have two pairs of equal angles and a pair of equal non-included sides. Which postulate proves congruence?

    Answer: AAS

    Angle-Angle-Side uses two angles and a non-included equal side.

  2. In a right triangle, the side opposite the right angle is called the:

    Answer: Hypotenuse

    The hypotenuse is the longest side, opposite the right angle.

  3. If two angles of one triangle equal two angles of another, the triangles are:

    Answer: Similar

    Two equal pairs of angles make triangles similar (AA), not necessarily congruent.

  4. A triangle has angles 90, 45, and 45 degrees. It is best described as:

    Answer: Right isosceles

    A 90-degree angle with two equal 45-degree angles is right and isosceles.

  5. What does CPCTC stand for in geometry proofs?

    Answer: Corresponding Parts of Congruent Triangles are Congruent

    CPCTC states corresponding parts of congruent triangles are congruent.

  6. The sum of any two sides of a triangle must be:

    Answer: Greater than the third side

    The triangle inequality requires any two sides to sum to more than the third.

  7. Which segment connects a vertex to the midpoint of the opposite side?

    Answer: Median

    A median joins a vertex to the midpoint of the opposite side.