Understanding Elementary Shapes

48. A triangle with all equal sides is called a(n)

  • (A) Equilateral triangle
  • (B) Scalene triangle
  • (C) Isosceles triangle
  • (D) Right-angled triangle

47. Angles of an equilateral triangle are

  • (A) 90°
  • (B) 60°
  • (C) 70°
  • (D) 80°

46. If angles of a triangle are 90°, 45°, 45°, then it is an example of

  • (A) Equilateral triangle
  • (B) Scalene triangle
  • (C) Isosceles triangle
  • (D) Right-angled triangle

45. When two non-parallel line segments are produced further, they will

  • (A) Never meet
  • (B) Always meet
  • (C) Sometimes meet
  • (D) None of these

44. When two parallel line segments are produced further, they will

  • (A) Never meet
  • (B) Always meet
  • (C) Sometimes meet
  • (D) None of these

43. “All equilateral triangles are isosceles also” is

  • (A) Never true
  • (B) Always true
  • (C) Sometimes true
  • (D) None of these

42. In the following figure, PQAB and PO = OQ. Is PQ the perpendicular bisector of line segment AB?

  • (A) Never
  • (B) Always
  • (C) Sometimes
  • (D) None of these

41. In the following figure, let AC ⊥ BD. How many right angles are there in this figure?  

  • (A) 3
  • (B) 6
  • (C) 4
  • (D) 8

40. What is the name of the polygon ABCD in the given figure?

  • (A) 3
  • (B) 6
  • (C) 4
  • (D) 8

39. How many cubes are there in the following figure?

  • (A) 21
  • (B) 18
  • (C) 19
  • (D) None of these

38. How many cubes are there in the following figure?

  • (A) 12
  • (B) 14
  • (C) 13
  • (D) None of these

37. How many cubes are there in the following figure?

  • (A) 16
  • (B) 15
  • (C) 12
  • (D) None of these

36. How many cubes are there in the following figure?

  • (A) 16
  • (B) 15
  • (C) 12
  • (D) None of these

35. Solid shapes are of

  • (A) Two dimensions
  • (B) Three dimensions
  • (C) One dimension
  • (D) Four dimensions

34. The corners of a solid shape are called its

  • (A) Faces
  • (B) Edges
  • (C) Vertices
  • (D) Flat surface

33. The line segments/ curves which form the skeleton of the solid shapes are known as its

  • (A) Faces
  • (B) Edges
  • (C) Vertices
  • (D) Flat surface