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Points Lines & Angles 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.

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  1. Alternate interior angles formed by a transversal crossing parallel lines are what?

    Answer: Congruent

    Alternate interior angles are equal when the lines are parallel.

  2. An angle measures 180°. What is it called?

    Answer: Straight angle

    A 180° angle forms a straight line and is a straight angle.

  3. An angle greater than 180° but less than 360° is classified as what?

    Answer: Reflex angle

    A reflex angle measures more than 180° and less than 360°.

  4. The common endpoint where two rays meet to form an angle is called the what?

    Answer: Vertex

    The vertex is the shared endpoint of the two rays forming an angle.

  5. Two angles are complementary and equal. What is the measure of each?

    Answer: 45°

    Equal complementary angles each measure 90 ÷ 2 = 45°.

  6. Co-interior (same-side interior) angles on parallel lines cut by a transversal are what?

    Answer: Supplementary

    Same-side interior angles sum to 180°, making them supplementary.

  7. What is the point that divides a segment into two equal halves called?

    Answer: Midpoint

    The midpoint splits a segment into two congruent halves.