Practice Test GeeksGeometry Practice Test
← All Geometry Flashcard Decks

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 all three pairs of corresponding sides equal in length. Which congruence postulate proves them congruent?

    Answer: SSS

    Three pairs of equal sides guarantee congruence by the Side-Side-Side postulate.

  2. Which combination does NOT guarantee two triangles are congruent?

    Answer: SSA

    SSA (Side-Side-Angle) is ambiguous and does not guarantee congruence.

  3. In triangle ABC, angle A = 50 degrees and angle B = 60 degrees. What is angle C?

    Answer: 70 degrees

    Angles of a triangle sum to 180, so C = 180 - 50 - 60 = 70.

  4. The Hypotenuse-Leg (HL) theorem applies only to which type of triangle?

    Answer: Right triangles

    HL congruence is valid only for right triangles because it references the hypotenuse.

  5. Two triangles have two pairs of equal angles and the included sides equal. Which postulate applies?

    Answer: ASA

    Two angles with the side between them equal proves congruence by Angle-Side-Angle.

  6. If two triangles are congruent, what is true about their corresponding parts?

    Answer: All corresponding sides and angles are equal

    Congruent triangles have all corresponding sides and angles equal (CPCTC).

  7. A triangle has sides 5, 5, and 8. What type of triangle is it by its sides?

    Answer: Isosceles

    Exactly two equal sides make the triangle isosceles.