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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 triangle has angles measuring 45° and 65°. What is the measure of the third angle?

    Answer: 70°

    The sum of interior angles in a triangle is 180°, so 180 − 45 − 65 = 70°.

  2. Which of the following best describes a quadrilateral with exactly one pair of parallel sides?

    Answer: Trapezoid

    A trapezoid has exactly one pair of parallel sides, distinguishing it from parallelograms.

  3. A circle has a diameter of 10 cm. What is its circumference? (Use π ≈ 3.14)

    Answer: 31.4 cm

    Circumference = π × d = 3.14 × 10 = 31.4 cm.

  4. Two lines are cut by a transversal. If alternate interior angles are equal, the lines are:

    Answer: Parallel

    Equal alternate interior angles are a property of parallel lines cut by a transversal.

  5. A rectangular room is 12 ft long and 9 ft wide. What is the length of the diagonal?

    Answer: 15 ft

    Using the Pythagorean theorem: √(12² + 9²) = √(144 + 81) = √225 = 15 ft.

  6. What is the area of a parallelogram with a base of 8 m and a height of 5 m?

    Answer: 40 m²

    Area of a parallelogram = base × height = 8 × 5 = 40 m².

  7. A right angle measures exactly:

    Answer: 90°

    By definition, a right angle measures exactly 90°.