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Class 9 Maths Practice Test: Lines and Angles - Linear Pair of Angles
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Linear pair of angles are formed when two lines intersect each other at a single point. The angles are said to be linear if they are adjacent to each other after the intersection of the two lines. The sum of angles of a linear pair is always equal to 180°.

Class 9 Maths Practice Test: Lines and Angles - Linear Pair of Angles
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10 Questions

1. What is the value of k if ∠BOD and ∠COE are right angles?
2. What is the value of ∠COF?
3. What is the value of x in the given figure?
4. Find the value of y if OF is the angle bisector of ∠COB.
5. Find the value of x and y if x – y = 30°.
6. Identify the linear pair of angles from the given options.
7. Find the value of k if ∠POQ and ∠POR form a linear pair.
8. Which of the following options are satisfy the condition that POQ is a line?
9. Find the value of ∠BOD if ∠AOD : ∠AOC = 4 : 5.
10. Find the value of x.

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