Class 6 Understanding Elementary Shapes CBSE Questions & Answers

Class 6 · Understanding Elementary Shapes

This is Mathematics Class 6 Understanding Elementary Shapes CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
How many right angles do you make if you start facing north and turn anti-clockwise to east?
  • A
    2
  • B
    5
    Correct
  • C
    4
  • D
    3
2
How many right angles do you make if you start facing west and turn to west?
  • A
    4
    Correct
  • B
    3
  • C
    1
  • D
    2
3
How many right angles do you make if you start facing south and turn to north?
  • A
    4
  • B
    3
  • C
    1
  • D
    2
    Correct
4
An angle whose measure is more than 180\(^\circ \)but less than 360\(^\circ \).
  • A
    straight angle
  • B
    right angle
  • C
    None of these
  • D
    reflex angle
    Correct
5
If each angle is less than 90\(^\circ\), then the triangle is called _________________.
  • A
    right-angled
  • B
    acute-angled
    Correct
  • C
    obtuse-angled
  • D
    None of these
6
If any one angle is a right angle then the triangle is called _________________.
  • A
    acute-angled
  • B
    obtuse-angled
  • C
    right-angled
    Correct
  • D
    None of these
7
If any one angle is greater than 90\(^\circ \), then the triangle is called _________________.
  • A
    obtuse-angled
    Correct
  • B
    right-angled
  • C
    acute-angled
  • D
    None of these
8
Name the type of triangle: Triangle with lengths of sides 7 cm, 8 cm and 9 cm.
  • A
    Scalene triangle
    Correct
  • B
    Equilateral triangle
  • C
    Isosceles triangle
  • D
    None of these
9
Name the type of triangle: \(\Delta \)ABC with AB = 8.7 cm, AC = 7 cm and BC = 6 cm.
  • A
    Equilateral triangle
  • B
    Scalene triangle
    Correct
  • C
    Isosceles triangle
  • D
    None of these
10
Name the type of triangle: \(\Delta \)PQR such that PQ = QR = PR = 5 cm.
  • A
    Equilateral triangle
    Correct
  • B
    None of these
  • C
    Isosceles triangle
  • D
    Scalene triangle
11
Name the type of triangle: \(\Delta\)DEF with m\(\angle \)D = 90\(^\circ \).
  • A
    right-angled
    Correct
  • B
    obtuse-angled
  • C
    acute-angled
  • D
    None of these
12
Name the type of triangle: \(\Delta\)XYZ with m\(\angle \)Y = 90\(^\circ \)and XY = YZ.
  • A
    None of these
  • B
    Isosceles right-angled triangle
    Correct
  • C
    Obtuse-angled triangle
  • D
    Acute-angled triangle
13
Name the type of triangle: \(\Delta \)LMN with m\(\angle \)L = 30\(^\circ \), m\(\angle \)M =70\(^\circ \)and m\(\angle \)= 80\(^\circ \).
  • A
    Obtuse-angled triangle
  • B
    Right-angled triangle
  • C
    Acute-angled triangle
    Correct
  • D
    None of these
14
Name the type of triangle: \(\Delta \)PQR such that PQ = QR = 5 cm and PR = 7 cm.
  • A
    Equilateral triangle
  • B
    Scalene triangle
  • C
    None of these
  • D
    Isosceles triangle
    Correct
15
Name the polygon with 3 sides.
  • A
    triangle
    Correct
  • B
    hexagon
  • C
    quadrilateral
  • D
    pentagon