Angles Flashcards
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Questions and Answers

What is the definition of a right angle?

  • Greater than 90 degree angle
  • Less than 90 degree angle
  • 90 degree angle (correct)
  • 180 degree angle
  • What is an acute angle?

    Less than 90 degree angle

    What is an obtuse angle?

    Greater than 90 degree angle

    What is the definition of a straight angle?

    <p>180 degree angle</p> Signup and view all the answers

    What is a vertex in relation to angles?

    <p>The point where two rays meet</p> Signup and view all the answers

    Two angles are ________ if they are opposite angles formed by the intersection of two lines.

    <p>vertical</p> Signup and view all the answers

    Vertical angles are ___________ or have the same measure.

    <p>congruent</p> Signup and view all the answers

    Two angles are __________ if they share a common vertex, a common side or do not overlap.

    <p>adjacent</p> Signup and view all the answers

    Two angles __________ if the sum of their measures is 90 degrees.

    <p>complementary</p> Signup and view all the answers

    Two angles are ____________ if the sum of their measures is 180 degrees.

    <p>supplementary</p> Signup and view all the answers

    Study Notes

    Angle Classifications

    • Right Angle: Measures exactly 90 degrees.
    • Acute Angle: Measures less than 90 degrees.
    • Obtuse Angle: Measures greater than 90 degrees.
    • Straight Angle: Measures exactly 180 degrees.

    Angle Properties

    • Vertex: The point where two rays meet to form an angle.
    • Vertical Angles: Opposite angles formed by the intersection of two lines, have equal measures.
    • Congruent Angles: Vertical angles are congruent, meaning they share the same measure.

    Angle Relationships

    • Adjacent Angles: Two angles that share a common vertex and a common side, but do not overlap.
    • Complementary Angles: Two angles whose measures add up to 90 degrees.
    • Supplementary Angles: Two angles whose measures add up to 180 degrees.

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    Test your knowledge of different types of angles with these flashcards. Each card presents a specific angle definition, from right angles to obtuse angles. Perfect for students studying geometry or reviewing basic angle concepts.

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