Class IX Mathematics Quiz: Lines and Angles
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Preview questions
1. What is the sum of the angles on a straight line?
90 degrees · 180 degrees · 360 degrees · 270 degrees
2. If two lines intersect, what is the relationship between the vertically opposite angles?
They are equal · They are supplementary · They are complementary · They are adjacent
3. Which of the following pairs of angles are complementary?
30 degrees and 60 degrees · 45 degrees and 45 degrees · 90 degrees and 90 degrees · 120 degrees and 30 degrees
4. What do you call two angles that add up to 180 degrees?
Complementary angles · Adjacent angles · Supplementary angles · Vertically opposite angles
5. If two parallel lines are cut by a transversal, what is the relationship between the alternate interior angles?
They are equal · They are supplementary · They are complementary · They are adjacent
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