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Maths M.C.Q. [1 Marks Each]

Symmetry · Jharkhand Board (JAC) STD 7 (Jharkhand - English Medium). 32 questions.

Questions

M.C.Q. [1 Marks Each]

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32 questions · auto-graded multiple-choice test.

MCQ 11 Mark
The order of rotational symmetry of an equilateral triangle is:
  • A
    $0$
  • B
    $1$
  • C
    $2$
  • ✓
    $3$
Answer
Correct option: D.
$3$

The order of rotational symmetry of an equilateral triangle is $3$ i.e., $120^{\circ}, 240^{\circ}$, and $360^{\circ}$.
Hence, the correct answer is option $(d).$

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MCQ 21 Mark
The number of lines of symmetry of an equilateral triangle is:
  • A
    $1$
  • B
    $2$
  • ✓
    $3$
  • D
    $0$
Answer
Correct option: C.
$3$
The number of lines of symmetry of an equilateral triangle is $3:$



Hence, the correct answer is option $(c).$
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MCQ 31 Mark
A rectangle has rotational symmetry of order:
  • A
    $1$
  • B
    $2$
  • C
    $3$
  • ✓
    $4$
Answer
Correct option: D.
$4$

A rectangle has order of rotational symmetry of $2$ i.e., $180^{\circ}$ and $360^{\circ}$
Hence, the correct answer is option $(d).$

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MCQ 41 Mark
Which of the following is/ are point symmetric?
  • A
    Rectangle.
  • B
    Square.
  • C
    Parallelogram.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
A point of symmetry is a point that represents a "center" of sorts for the figure.
Hence, the correct answer is option $(d).$
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MCQ 51 Mark
The number of lines of symmetry of a rectangle is:
  • ✓
    $2$
  • B
    $3$
  • C
    $4$
  • D
    $1$
Answer
Correct option: A.
$2$
The number of lines of symmetry of a rectangle is $2.$

Hence, the correct answer is option $(a).$
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MCQ 61 Mark
Which of the following has an infinite number of lines of symmetry$?$
  • A
    Equilateral triangle.
  • B
    Isosceles triangle.
  • C
    Regular hexagon.
  • ✓
    Circle.
Answer
Correct option: D.
Circle.
A circle has infinite number of lines of symmetry,

Hence, the correct answer is option $(d).$
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MCQ 71 Mark
The number of lines of symmetry of a square is:
  • A
    $2$
  • B
    $3$
  • ✓
    $4$
  • D
    Infinite.
Answer
Correct option: C.
$4$
The number of lines of symmetry of a square is $4.$

Hence, the correct answer is option $(c).$
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MCQ 81 Mark
Which of the following has only $2$ lines of symmetry$?$
  • A
    Equilateral triangle.
  • ✓
    Rhombus.
  • C
    Circle.
  • D
    None of these.
Answer
Correct option: B.
Rhombus.
The rhombus has only $2$ lines of symmetry.

Hence, the correct answer is option $(b).$
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MCQ 91 Mark
Which of the following is point symmetric$?$
  • A
    Equilateral triangle.
  • B
    Trapezium.
  • ✓
    Rectangle.
  • D
    None of these.
Answer
Correct option: C.
Rectangle.
A point of symmetry is a point that represents a "center" of sorts for the figure.
Hence, the correct answer is option $(c).$
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MCQ 101 Mark
The number of lines of symmetry of an isosceles triangle is:
  • A
    $0$
  • ✓
    $1$
  • C
    $2$
  • D
    $3$
Answer
Correct option: B.
$1$
The number of line of symmetry of an isosceles triangle is $1.$

Hence, the correct answer is option $(b).$
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MCQ 171 Mark
Which of the following is point symmetric?
  • A
    Equilateral triangle
  • B
    Trapezium
  • ✓
    Rectangle
  • D
    None of these
Answer
Correct option: C.
Rectangle
C
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MCQ 181 Mark
Which of the following has an infinite number of lines of symmetry?
  • A
    Equilateral triangle
  • B
    Isosceles triangle
  • C
    Regular hexagon
  • ✓
    Circle
Answer
Correct option: D.
Circle
D
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MCQ 191 Mark
Which of the following is/are point symmetric?
  • A
    Rectangle
  • B
    Square
  • C
    Parallelogram
  • ✓
    All of these
Answer
Correct option: D.
All of these
D
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MCQ 201 Mark
Which of the following has only 2 lines of symmetry?
  • A
    Equilateral triangle
  • ✓
    Rhombus
  • C
    Circle
  • D
    None of these
Answer
Correct option: B.
Rhombus
B
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MCQ 211 Mark
The number of lines of symmetry of the letter Z of the English alphabet is
  • ✓
    0
  • B
    1
  • C
    2
  • D
    3
Answer
Correct option: A.
0
A
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MCQ 221 Mark
The number of lines of symmetry of the letter O of the English alphabet is
  • A
    0
  • B
    1
  • ✓
    2
  • D
    3
Answer
Correct option: C.
2
C
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MCQ 231 Mark
The number of lines of symmetry of an n-sided regular polygon is
  • ✓
    п
  • B
    2n
  • C
    $\frac{\pi}{2}$
  • D
    none of these
Answer
Correct option: A.
п
A
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MCQ 281 Mark
A rhombus is symmetrical about
  • ✓
    each of its diagonals
  • B
    the line joining the mid-points of its opposite sides
  • C
    perpendicular bisectors of each of its sides
  • D
    none of these
Answer
Correct option: A.
each of its diagonals
A
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MCQ 301 Mark
An equilateral triangle is symmetrical about each of its
  • A
    altitudes
  • B
    medians
  • C
    angle bisectors
  • ✓
    all the above
Answer
Correct option: D.
all the above
D
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MCQ 311 Mark
The total number of lines of symmetry of an isosceles triangle is
  • ✓
    1
  • B
    2
  • C
    3
  • D
    None of these
Answer
Correct option: A.
1
A
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MCQ 321 Mark
The total number of lines of symmetry of a scalene triangle is
  • A
    1
  • B
    2
  • C
    3
  • ✓
    None of these
Answer
Correct option: D.
None of these
D
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