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Mathematics
4. Angles, Lines and Triangles
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Q13 of 153 Page 148

Which of the following statements is false?

Through a given point, we can draw infinite number of lines.

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11

In the given figure, AOB is a straight line. If ∠AOC = 40°, ∠COD = 4x°, and ∠BOD = 3x°, then ∠COD = ?

12

In the given figure, AOB is a straight line. If ∠AOC = (3x – 10)°, ∠COD = 50° and ∠BOD = (x + 20)°, then ∠AOC = ?

14

An angle is one – fifth of its supplement. The measure of the angle is

15

In the adjoining figure, AOB is a straight line. If x : y : z = 4 : 5 : 6, then y = ?

Questions · 153
4. Angles, Lines and Triangles
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