Lines and Angles

44. Adjacent angles of a linear pair are

• (A) Supplementary        
• (B) Complimentary        
• (C) Vertically opposite   
• (D) Alternate

43. Adjacent angles have a common vertex, a common arm and no-common

• (A) Exterior points
• (B) Interior points
• (C) Angles  
• (D) None of these

42. Vertically opposite angles are

• (A) Equal
• (B) Different
• (C) Always 180°   
• (D) None of these

41. If two parallel lines are intersected by a transversal, then

• (A) Corresponding angles are congruent    
• (B) Corresponding angles are not congruent
• (C) Alternate interior angles are not congruent    
• (D) All of the angles formed are congruent to 45° angles

40. If two parallel lines are intersected by a transversal, then

• (A) Alternate angles are congruent   
• (B) Alternate angles are not congruent
• (C) Corresponding angles are not congruent       
• (D) Sum of co-interior angles is not equal to 180°

39. If two parallel lines are intersected by a transversal, then

• (A) Sum of co-interior angles is equal to 180°
• (B) Alternate angles are not congruent
• (C) Corresponding angles are not congruent       
• (D) Alternate exterior angles are different

38. In a pair of adjacent angles, (i) vertex is always common, (ii) one arm is always common, and (iii) uncommon arms are always opposite rays. Then

• (A) All (i), (ii) and (iii) are true
• (B) (iii) is false
• (C) (i) is false but (ii) and (iii) are true
• (D) (ii) is false

37. The angles x and 90° – x are

• (A) Supplementary        
• (B) Complementary
• (C) Vertically opposite   
• (D) Making a linear pair

36. The angles x – 10° and 190° – x are

• (A) Interior angles on the same side of the transversal
• (B) Making a linear pair
• (C) Complementary
• (D) Supplementary

35. Which of the following pair of angles are supplementary?

• (A) 48°, 42° 
• (B) 60°, 60°
• (C)  75°, 105°       
• (D) 179°, 2°

34. Which of the following pair of angles are complementary?

• (A) 48.5°, 41.5°    
• (B) 60.5°, 30.5°
• (C)  75°, 10.5°      
• (D) 79°, 1°

33. The angle which is equal to its complement is

• (A) 30°
• (B) 60°
• (C) 50°
• (D) 45°

32. The angle which is equal to its supplement is

• (A) 120°
• (B) 90°
• (C) 60°
• (D) 100°

31. The difference in the measures of two complementary angles is 12°. The measure of the largest angle is

• (A) 39°
• (B) 40°
• (C) 51°
• (D) 45°