CBSE  /  Class 6  /  Maths  /  Understanding Elementary Shapes

  • 1. 
    The measure of an acute angle is

  • < 90°
  • > 90°
  • = 90°
  • none of these

  • 2. 
    The measure of an obtuse angle is

  • < 90°
  • > 90° and < 180°
  • = 90°
  • none of these.

  • 3. 
    The measure of a reflex angle is

  • 180°
  • < 180°
  • > 180°
  • < 90°

  • 4. 
    The number of vertices of a sphere is

  • 0
  • 1
  • 2
  • none of these.

  • 5. 
    The number of comers of a cylinder is

  • 0
  • 1
  • 2
  • none of these.

  • 6. 
    Which of the following angles is the measure of an acute angle?

  • 30°
  • 90°
  • 120°
  • 210°

  • 7. 
    Which of the following angles is the measure of an obtuse angle?

  • 120°
  • 90°
  • 60°
  • 240°

  • 8. 
    Which of the following angles is the measure of a reflex angle?

  • 90°
  • 180°
  • 120°
  • 270°

  • 9. 
    A triangle having three unequal sides is called a

  • scalene triangle
  • isosceles triangle
  • equilateral triangle
  • right triangle

  • 10. 
    A triangle having two equal sides is called

  • a scalene triangle
  • an isosceles triangle
  • an equilateral triangle
  • a right angled triangle
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