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Gr 9 MATH: Ch 8.2 Solving Problems
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Gr 9 MATH: Ch 8.2 Solving Problems

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Questions and Answers

What is the sum of two supplementary angles?

  • 360°
  • 90°
  • 180° (correct)
  • 270°

    • What is the measure of each angle when two lines intersect to form perpendicular lines?

  • 90° (correct)
  • 120°
  • 60°
  • 45°

    • What is the relationship between vertically opposite angles?

  • They are always unequal
  • They are always complementary
  • They are always equal (correct)
  • They are always supplementary

    • What is the sum of co-interior angles when a transversal intersects two parallel lines?

    <p>180°</p> Signup and view all the answers

    What is the purpose of a protractor in drawing and interpreting graphs of angles and lines?

    <p>To measure angles</p> Signup and view all the answers

    What type of angles are formed when a transversal intersects two parallel lines, and are equal?

    <p>Corresponding angles</p> Signup and view all the answers

    What is the first step in drawing and interpreting graphs of angles and lines?

    <p>Identify the lines and angles</p> Signup and view all the answers

    What is the characteristic of alternate angles when a transversal intersects two parallel lines?

    <p>They are always equal</p> Signup and view all the answers

    When two lines intersect, what is the relationship between the angles formed?

    <p>They are always vertically opposite.</p> Signup and view all the answers

    What is the purpose of identifying corresponding angles when a transversal intersects two parallel lines?

    <p>To determine if the lines are parallel.</p> Signup and view all the answers

    If two angles are supplementary, what is the sum of their measures?

    <p>180°</p> Signup and view all the answers

    What is the relationship between alternate angles when a transversal intersects two parallel lines?

    <p>They are always equal.</p> Signup and view all the answers

    What is the sum of the measures of two co-interior angles when a transversal intersects two parallel lines?

    <p>180°</p> Signup and view all the answers

    What is the characteristic of perpendicular lines?

    <p>They intersect at a 90° angle.</p> Signup and view all the answers

    What is the purpose of measuring angles in a graph?

    <p>To check their properties, such as equality of corresponding and alternate angles.</p> Signup and view all the answers

    What is the first step in determining relationships between angles in a graph?

    <p>Identify the parallel lines and transversal.</p> Signup and view all the answers

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