lines and angles mcq class 9 online test

Q1. External bisector of ∠B AND ∠C meet at O as shown in figure below. Find the value of ∠BOC?

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65°

40°

100°

140°

Q2. Find the value of x in below given figure?

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100°

130°

110°

140°

Q3. Given line l1 and l2 are parallel in below figure,Find value of x?

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140°

100°

80°

110°

Q4.One angle of triangle is 70° and diffrenace of other two is 30° then which type of triangle it is?

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Right angle

Equiletral

Isoceles

None of these

Q5. In below figure,AB and CD are parallel lines.Find value of x?

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100°

75°

105°

80°

Q6. PS and RQ are perpendicular on line l as shown figure below. Find the measure of y?

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90°

80°

75°

100°

Q7. Line l1,l2 and l3 are parallel in below figure,Find value of x?

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50°

140°

60°

100°

Q8.In a triangle, if the measure of an exterior angle is 110° and its opposite interior angles are equal. Find the value of these equal angles

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50°

40°

30°

30°

Q9. If the ratio of the angles 5:3:7. The triangle will be:

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An isosceles triangle

An acute- angled triangle

An obtuse-angled triangle

None of these

Q10. If the ratio of the angles 2:4:3. The value of the smallest angle will be:

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20°

30°

40°

50°

Q11. Find the value of y, if B lies on AC. Given AB = y + 3, AC = 4y – 5 and BC = 2y.

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5

8

3

2

Q12.If AB || CD, EF ⊥ CD and ∠GED = 135° as per the figure given below.

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45°

105°

135°

None of these

Q13. If two complementary angles are in the ratio 13 : 5, then the angles are:

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13x°,5x°

105°,75°

25°,65°

65°,25°

Q14. The diagonals of the rectangle ABCD intersect at O. If ∠COD = 78°, then ∠OAB is:

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48°

51°

60°

None of these

Q15. Intersecting lines cut each other at.........point/Points.

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4

3

1

2

Q16.Two parallel lines intersect at ..........point/Points

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4

3

2

None of these

Q17.Two straight line AB and CD intersect one another at the point O. If ∠AOC + ∠COB + ∠BOD = 274°, then ∠AOD =

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96°

86°

76°

66°

Q18.Which of the following statements are true , When two straight lines intersect

(i) adjacent angles are complementary

(ii) adjacent angles are supplementary

(iii) opposite angles are equal

(iv) opposite angles are supplementary

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(i) and (ii) are correct

(i) and (iv) are correct

(i) and (iv) are correct

(ii) and (iii) are correct

Q19. Find the value of x?

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10°

15°

18°

20°

Q20.If two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 2:3, then the measure of the larger angle is

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54°

108°

120°

130°

Q21. The sum of two angles of triangle is 120° their diffrenance is 20° and Find the largest angle of triangle?

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70°

50°

60°

None of these

Q22.If two interior angles on the same side of a transversal intersecting two parallel lines are in the ratio 5 : 4, then the greater of the two angles is

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120°

80°

110°

100°

Q23. If angle with measure x and y form a complementary pair, then angles with which of the following measures will form a supplementary pair?

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(x-47° ),(y-43°)

(x+27° ),(y+23°)

(x+47° ),(y+43°)

None of these

Q24. In figure, if l and m are parallel , what is the value of x ?

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80°

70°

60°

50°

Q25.Two adjacent angles are said to form a linear pair of angles, if their non-common arms are two opposite rays

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True

False