Ch
# 12 Symmetry worksheets
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Ch # 12 Symmetry |
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Pg 142 |
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1.
Line of symmetry is also called
__________. |
mirror |
Pg 143 |
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2.
A line of symmetry divides a
figure into ______ equal parts that look exactly same. |
Two |
Pg 143 |
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3.
Some geometrical figure have
two or _____ lines of symmetry. |
More |
Pg 143 |
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4.
Mirror line is also known as
_______. |
Line of symmetry |
Pg 144 |
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5.
When there is reflection of an
object, a ______ image is produced. |
Mirror |
Pg 144 |
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6.
The movement of an object about
a fixed point, through any number of degrees is called _______. |
Rotation |
Pg 145 |
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7.
The ________ of a rotational
symmetry of a shape is the number of times the shape can be rotated to look
alike. |
Order |
Pg 145 |
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8.
The number of lines of symmetry
in a square is ______. |
4 |
Pg 146 |
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9.
Angle of rotational symmetry in
a circle is _______. |
Unlimited |
Pg146 |
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10.
The order of rotational symmetry in a
triangle is _________. |
Three |
Pg 146 |
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Ch
12 |
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1. |
A
square has four lines of symmetry. |
True |
Pg
143 |
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2. |
A
triangle has five lines of symmetry |
False |
Pg
143 |
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3. |
Alphabet
A has one vertical line of symmetry. |
True |
Pg
143 |
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4. |
Alphabet
o has both axes of symmetry. |
True |
Pg
143 |
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5. |
Alphabet
b has one vertical line of symmetry |
False |
Pg
143 |
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6. |
When
a figure is symmetrical the other half of a figure cannot be drawn by looking
the given half. |
False |
Pg
144 |
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7. |
A
line of symmetry is also called a mirror line. |
True |
Pg
144 |
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8. |
When
there is a reflection of an object A mirror image is not produced |
False |
Pg
144 |
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9. |
The
movement of an object about a fixed point is called rotation. |
True |
Pg
144 |
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10. |
The
order of rotational symmetry of a shape is the number of times the shape can
be rooted and does not look the same |
False |
Pg
145 |
Q- match the column:
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Ch
12 |
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Divides a figure into two equal parts |
square |
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4 lines of symmetry |
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3 lines of symmetry |
Triangle |
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vertical line of symmetry |
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Horizontal line of symmetry |
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No axes of symmetry |
unlimited |
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Both axes of symmetry |
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Rotational symmetry order of circle |
Line of symmetry |
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Rotational symmetry order of square |
4 |
q. choose the best answer:
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Ch # 12 Symmetry |
|
Pg 142 |
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11.
Line of symmetry is also called
__________. (a) Equal
line (b) mirror line (c) horizontal (d) vertical |
mirror |
Pg 143 |
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12.
A line of symmetry divides a
figure into ______ equal parts that look exactly same. (a) Many (b) three (c) four (d) two |
Two |
Pg 143 |
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13.
Some geometrical figure have
two or _____ lines of symmetry. (a) Much (b) more (c) three (d) six |
More |
Pg 143 |
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14.
Mirror line is also known as
_______. (a) Line
of symmetry (b) line of equal (c) line of reflection (d) none |
Line of symmetry |
Pg 144 |
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15.
When there is reflection of an
object, a ______ image is produced. (a) Same (b) opposite (c) mirror (d) reflect |
Mirror |
Pg 144 |
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16.
The movement of an object about
a fixed point, through any number of degrees is called _______. (a) Mirror (b) rotation (c) order
(d) symmetry |
Rotation |
Pg 145 |
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17.
The ________ of a rotational
symmetry of a shape is the number of times the shape can be rotated to look
alike. (a) mirror (b) order
(c) shape (d) number |
Order |
Pg 145 |
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18.
The number of lines of symmetry
in a square is ______. (a) 5 (b) 6
(c) 8 (d) 4 |
4 |
Pg 146 |
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19.
The rotational symmetry order in a circle is
_______. (a) Unlimited
(b) four (c) 6 (d) none |
Unlimited |
Pg146 |
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20.
The order of rotational symmetry in a
triangle is _________. (a) 4 (b) unlimited (c) three (d) six |
Three |
Pg 146 |