The number of lines of symmetry in a scalene triangle is

1

(a)

0

(b)

1

(c)

2

(d)

3

The number of lines of symmetry in a circle is

1

(a)

0

(b)

2

(c)

4

(d)

more than 4

How many lines of symmetry are there in the given figure?

1

(a)

One

(b)

Two

(c)

Three

(d)

Four

How many lines of symmetry does the figure have?

1

(a)

1

(b)

2

(c)

3

(d)

4

How many lines of symmetry does a regular hexagon have?

1

(a)

1

(b)

3

(c)

4

(d)

6

A line of _____ divides a figure into two matching parts.

1

(a)

symmetry

A scalene triangle has _____ line of symmetry.

1

(a)

zero

The number of line of symmetry in a picture of Taj Mahal is ______

1

(a)

one.

The number of lines of symmetry in a rectangle and a square are ______. (equal / unequal).

1

(a)

unequal.

If an angle of measure 80° is reflected in a line of symmetry, then the reflection is an ______ of measure ______.

1

(a)

80°.

The letter D has one line of symmetry.

1

(a) False

(b) True

If a rectangle has more than two lines of symmetry, then it must be a square.

1

(a) False

(b) True

A kite has two lines of symmetry.

1

(a) True

(b) False

A parallelogram has no line of symmetry.

1

(a) False

(b) True

A square and a rectangle have the same number of lines of symmetry.

1

(a) True

(b) False

List any four symmetrical objects from your home or school.

2

(a)

Identify the shapes given below. Check whether, they are symmetric or not. Draw the line of symmetry as well.

2

(a)

How many lines of symmetry are there for the following figures?

2

(a)

If you are 100 cm in front of a mirror, where does your image appear to be? If you move towards the mirror, how does your image move?

2

(a)

How many lines of symmetry are there in a semi-circle?

2

(a)

Copy the triangle in each of the following figures on squared paper. In each case, draw the line(s) of symmetry, if any and identify the type of triangle.

2

(a)

Find the number of lines of symmetry of figure given below:

2

(a)

Draw two lines of symmetry in the following figures.

3

(a)

Write the letters of the word' MATHEMATICS' which have no line of symmetry.

3

(a)

On a squared paper, sketch the following :
A quadrilateral with both horizontal and vertical lines of symmetry.
(Hint It will be helpful, if you first draw the lines of symmetry and then complete the figures.)

3

(a)

Draw the mirror images of the following figures.

3

(a)

Write the number of lines of symmetry in each letter of the word 'SYMMETRY' and draw the line of symmetry.

4

(a)

In figure, the point C is the image of point A in line I and line segment BC intersects the Iine l at P.

(a) Is the image of P in line I the point P itself?
(b) Is PA = PC?
(c) Is PA + PB = PC + PB?
(d) Is P that point on line I from which the sum of the distances of points A and B is minimum?

5

(a)

On a squared sheet, draw the figure ABC and find its mirror image A 'B'C' with l as the mirror line.

Compare the lengths of
AB and A'B';
BC and B'C;
AC and A'C.
Are they different?
Does reflection change length of a line segment?
Compare the measures of the angles (use protractor to measure) ABC and A 'B'C'. Does reflection change the size of an angle?
Join AA', BB' and CC'. Use your protractor to measure the angles between the lines l and AA', l and BB', I and CC'.
What do you conclude about the angle between the mirror line I and the line segment joining a point and its reflected image?

5

(a)