Unit Circle Trigonometry Quiz
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Questions and Answers

What is the equation representing the unit circle?

  • $x^2 + y^2 = 1$ (correct)
  • $x^2 + y^2 = 0$
  • $x^2 - y^2 = 1$
  • $x^2 - y^2 = 0$

    • What is the name for the interior of the unit circle?

  • Unit cylinder
  • Open unit disk (correct)
  • Closed unit disk
  • Unit sphere

    • What are the lengths of the legs of a right triangle formed by a point (x, y) on the unit circle?

  • x and y
  • |x| and y
  • x and |y|
  • |x| and |y| (correct)

    • What is the interior of the unit circle combined with the unit circle itself called?

    <p>Closed unit disk</p> Signup and view all the answers

    What is the reflection property of points on the unit circle?

    <p>The reflection of any point on the unit circle about the x- or y-axis is also on the unit circle</p> Signup and view all the answers

    What is the equation representing the unit circle?

    <p>$x^2 + y^2 = 1$</p> Signup and view all the answers

    What is the interior of the unit circle combined with the unit circle itself called?

    <p>Closed unit disk</p> Signup and view all the answers

    If (x, y) is a point on the unit circle's circumference, what are the lengths of the legs of a right triangle whose hypotenuse has length 1?

    <p>|x| and |y|</p> Signup and view all the answers

    What is the name for the interior of the unit circle?

    <p>Open unit disk</p> Signup and view all the answers

    What is the reflection of any point on the unit circle about the x- or y-axis also on the unit circle called?

    <p>Reflection property</p> Signup and view all the answers

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