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

Reflection and Rotational Symmetry · Jharkhand Board (JAC) STD 7 (Jharkhand - English Medium). 18 questions.

Questions

M.C.Q. [1 Marks Each]

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18 questions · auto-graded multiple-choice test.

MCQ 11 Mark
Tick $(\checkmark)$ the correct answer. square has:
  • A
    One line of symmetry.
  • B
    Two lines of symmetry.
  • C
    Three lines of symmetry.
  • ✓
    Four lines of symmetry.
Answer
Correct option: D.
Four lines of symmetry.
Four lines of symmetry.
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MCQ 21 Mark
Tick $(\checkmark)$ the correct answer. The letter O of the English alphabet has:
  • A
    No line of symmetry.
  • B
    One line of symmetry.
  • ✓
    Two lines of symmetry.
  • D
    None of these.
Answer
Correct option: C.
Two lines of symmetry.
The letter $O$ of the English alphabetic system is symmetrical about its horizontal and vertical line.
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MCQ 31 Mark
Tick $(\checkmark)$ the correct answer. $A$ circle has:
  • A
    No line of symmetry.
  • B
    One line of symmetry.
  • C
    Two lines of symmetry.
  • ✓
    An unlimited number of lines of symmetry.
Answer
Correct option: D.
An unlimited number of lines of symmetry.
An unlimited number of lines of symmetry.
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MCQ 41 Mark
Tick $(\checkmark)$ the correct answer. In $\Delta\text{ABC},\text{AB}=\text{AC}\text{ and}$$\text{AD}\bot\text{ BC,BE }\bot\text{ AC}\text{ and}$$\text{CF }\bot\text{ AB.}\text{ Then }\Delta\text{ ABC}$ is symmetrical about:
  • ✓
    $AD$
  • B
    $BE$
  • C
    $CF$
  • D
    None of these
Answer
Correct option: A.
$AD$
$AD.$

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MCQ 51 Mark
Tick $(\checkmark)$ the correct answer.$A$ scalene triangle has:
  • ✓
    No line of symmetry.
  • B
    One line of symmetry.
  • C
    Two lines of symmetry.
  • D
    Three lines of symmetry.
Answer
Correct option: A.
No line of symmetry.
No line of symmetry.
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MCQ 61 Mark
Tick $(\checkmark)$ the correct answer.$ ABCD$ is a kite in which $AB = AD$ and $BC = DC$. The kite is symmetrical about:
  • A
    The diagonal $AC$
  • ✓
    The diagonal $BD$
  • C
    The diagonal $CD$
  • D
    None of these
Answer
Correct option: B.
The diagonal $BD$

Since the part $ABC$ is symmetrical to the part $ADC, AC$ divides the figure into two equal parts.
$A B=A D$ and $B C=D C$
$\Rightarrow$ Diagonal BD connects the vertices with equal adjacent sides
$\Rightarrow$ So diagonal $B D$ is the axis of symmetry
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MCQ 71 Mark
Tick $(\checkmark)$ the correct answer. A rhombus is symmetrical about:
  • A
    The line joining the midpoints of its opposite sides.
  • ✓
    Each of its diagonals.
  • C
    Perpendicular bisector of each of its sides.
  • D
    None of these.
Answer
Correct option: B.
Each of its diagonals.
Each of its diagonal.
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MCQ 81 Mark
Tick $(\checkmark)$ the correct answer. The letter $Z$ of the English alphabet has:
  • ✓
    No line of symmetry.
  • B
    One line of symmetry.
  • C
    Two lines of symmetry.
  • D
    None of these.
Answer
Correct option: A.
No line of symmetry.
No line of symmetry.
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MCQ 91 Mark
Tick $(\checkmark)$ the correct answer. A rectangle is symmetrical about:
  • A
    Each one of its sides.
  • B
    Each one of its diagonals.
  • ✓
    A line joining the midpoints of its opposite sides.
  • D
    None of these.
Answer
Correct option: C.
A line joining the midpoints of its opposite sides.
A line joining the midpoints of its opposite sides.

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MCQ 101 Mark
The letter Z of the English alphabet has
  • ✓
    no line of symmetry
  • B
    one line of symmetry
  • C
    two lines of symmetry
  • D
    none of these
Answer
Correct option: A.
no line of symmetry
a
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MCQ 111 Mark
The letter O of the English alphabet has
  • A
    no line of symmetry
  • B
    one line of symmetry
  • ✓
    two lines of symmetry
  • D
    none of these
Answer
Correct option: C.
two lines of symmetry
c
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MCQ 121 Mark
In $\triangle A B C, A B=A C$ and $A D \perp B C, B E \perp A C$ and $C F \perp A B$. Then, $\triangle A B C$ is symmetrical abutit
  • ✓
    AD
  • B
    BE
  • C
    CF
  • D
    none of these
Answer
Correct option: A.
AD
a
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MCQ 131 Mark
ABCD is a kite in which AB = AD and BC = DC. The kite is symmetrical about
Image
  • ✓
    the diagonal AC
  • B
    the diagonal BD
  • C
    none of these
Answer
Correct option: A.
the diagonal AC
a
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MCQ 141 Mark
A circle has
  • A
    no line of symmetry
  • B
    one line of symmetry
  • C
    two lines of symmetry
  • ✓
    an unlimited number of lines of symmetry
Answer
Correct option: D.
an unlimited number of lines of symmetry
d
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MCQ 151 Mark
A rhombus is symmetrical about
  • A
    the line joining the midpoints of its opposite sides
  • ✓
    each of its diagonals
  • C
    perpendicular bisector of each of its sides
  • D
    none of these
Answer
Correct option: B.
each of its diagonals
b
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MCQ 161 Mark
A square has
  • A
    one line of symmetry
  • B
    two lines of symmetry
  • C
    three lines of symmetry
  • ✓
    four lines of symmetry
Answer
Correct option: D.
four lines of symmetry
d
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MCQ 171 Mark
A rectangle is symmetrical about
  • A
    each one of its sides
  • B
    each one of its diagonals
  • ✓
    a line joining the midpoints of its opposite sides
  • D
    none of these
Answer
Correct option: C.
a line joining the midpoints of its opposite sides
c
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MCQ 181 Mark
A scalene triangle has
  • ✓
    no line of symmetry
  • B
    one line of symmetry
  • C
    two lines of symmetry
  • D
    three lines of symmetry
Answer
Correct option: A.
no line of symmetry
a
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