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Geometry & Trigonometry Flashcards

7 cards from real SATs 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 & Trigonometry flashcards as text

  1. What is the area of a circle with radius 5?

    Answer: 25π

    Area = πr² = π(5²) = 25π.

  2. In a right triangle, one leg is 3 and the hypotenuse is 5. What is the length of the other leg?

    Answer: 4

    By the Pythagorean theorem, 3² + b² = 5², so b² = 16 and b = 4.

  3. What is the sum of the interior angles of any triangle?

    Answer: 180°

    The interior angles of any triangle always sum to exactly 180°.

  4. In a right triangle, sin(θ) = 3/5. What is cos(θ)?

    Answer: 4/5

    Using sin²θ + cos²θ = 1: (9/25) + cos²θ = 1, so cos²θ = 16/25 and cosθ = 4/5.

  5. What is the circumference of a circle with diameter 10?

    Answer: 10π

    Circumference = πd = π(10) = 10π.

  6. Two parallel lines are cut by a transversal. One co-interior (same-side interior) angle measures 65°. What is the other co-interior angle?

    Answer: 115°

    Co-interior angles between parallel lines are supplementary and add to 180°; 180° − 65° = 115°.

  7. What is the volume of a cylinder with radius 3 and height 4?

    Answer: 36π

    Volume = πr²h = π(3²)(4) = 36π.

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