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Geometry Flashcards

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

Read the first 7 Geometry flashcards as text

  1. Two triangles are similar with a scale factor of 3. If the smaller triangle has an area of 8 square units, what is the area of the larger triangle?

    Answer: 72 square units

    Area scales by the square of the linear scale factor, so 8 × 3² = 72.

  2. A right triangle has legs of length 9 and 12. What is the length of the hypotenuse?

    Answer: 15

    By the Pythagorean theorem, √(9² + 12²) = √225 = 15.

  3. What is the sum of the interior angles of a regular hexagon?

    Answer: 720°

    The sum is (n − 2) × 180° = (6 − 2) × 180° = 720°.

  4. A circle has a radius of 5. What is its area? (Use π ≈ 3.14)

    Answer: 78.5

    Area = πr² = 3.14 × 25 = 78.5.

  5. Which transformation produces a figure that is congruent to the original but reversed, like a mirror image?

    Answer: Reflection

    A reflection flips a figure over a line, creating a congruent mirror image.

  6. Two angles are complementary. If one measures 35°, what is the measure of the other?

    Answer: 55°

    Complementary angles sum to 90°, so 90° − 35° = 55°.

  7. What is the volume of a rectangular prism with length 4, width 3, and height 5?

    Answer: 60

    Volume = length × width × height = 4 × 3 × 5 = 60.