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Geometry Flashcards

7 cards from real CHSPE 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. A cone has a radius of 5 cm and a height of 12 cm. What is its volume? (Use π ≈ 3.14)

    Answer: 314 cm³

    V = (1/3)πr²h = (1/3) × 3.14 × 25 × 12 = 314 cm³.

  2. On a coordinate plane, which quadrant contains the point (−3, 5)?

    Answer: Quadrant II

    Negative x and positive y places the point in Quadrant II.

  3. A polygon has 8 sides. What is the sum of its interior angles?

    Answer: 1080°

    Sum = (n − 2) × 180 = (8 − 2) × 180 = 6 × 180 = 1080°.

  4. What is the area of a trapezoid with parallel sides of 6 cm and 10 cm and a height of 4 cm?

    Answer: 32 cm²

    Area = ½ × (b₁ + b₂) × h = ½ × (6 + 10) × 4 = 32 cm².

  5. A point is reflected across the x-axis. If the original point is (4, −3), what is the image?

    Answer: (4, 3)

    Reflecting across the x-axis negates the y-coordinate: (4, −3) → (4, 3).

  6. Which pair of angles are formed on opposite sides of a transversal between two parallel lines and are inside the parallel lines?

    Answer: Alternate interior angles

    Alternate interior angles are between the parallel lines and on opposite sides of the transversal.

  7. The perimeter of a regular pentagon is 45 cm. What is the length of one side?

    Answer: 9 cm

    A regular pentagon has 5 equal sides; 45 ÷ 5 = 9 cm per side.