Reflection Symmetry

Q. Does the alphabet 'N' have reflection symmetry?

1. 'N' has no kind of symmetry.
2. Yes
3. No
4. Can't be determined

Q.

The mirror image of ‘W’, when the mirror is placed vertically:

1. 

2. 

3. 

4. 

Q.

Letter ‘B’ of the English alphabet has reflection symmetry (i.e., symmetry related to mirror reflection) about __________

1. None of these

2. Vertical mirror

3. Horizontal mirror

4. Both horizontal and vertical mirror

Q. Letter ‘A’ of the English alphabet has reflection symmetry (i.e., symmetry related to the mirror reflection). Along which mirror does the letter 'A' have reflection symmetry?

1. A horizontal mirror
2. A vertical mirror
3. Both horizontal and vertical mirrors
4. Slanted mirror

Q.

Which of the following is an example of radial symmetry?

1. Honeycombs

2. Spider webs

3. Kite

4. Scalene triangle

Q.

Find the reflection of the given image with respect to the red line.

1. 
2. 
3. 
4. 

Q.

Which of the following alphabets look the same on reflection in a vertical mirror?

1. B

2. T

3. P

4. R

Q.

Question 8

Given here are figures of a few folded sheets and designs drawn about the fold. In each case, draw a rough diagram of the complete figure that would be seen when the design is cut off

Q.

Question 3

In each figure below, a letter of the alphabet is shown along with a vertical line. Take the mirror image of the letter in the given line. Find which letters look the same after reflection (i.e., which letters look the same in the image) and which do not. Can you guess why?

Try for

Q. Choose an alphabet which is an example of reflection symmetry.

1. 
2. 
3. 
4. 

Q.

(a) Given that the diagram has 5 lines of symmetry. Draw all the lines of symmetry and then divide the figure into 10 parts. Given here is a part of the diagram. Complete the diagram. [4 MARKS]

(b) How many lines of symmetry do a polygon with its adjacent sides equal and perpendicular have?

Q.

On her way to meet her friends, Sonali saw an ambulance and wondered as to why the word 'ambulance ' is written in the manner depicted in the image? Choose the correct option explaining the reason.

1. To scare other vehicle drivers.

2. To be viewed properly when seen in a rear view mirror.

3. Just for fun

4. To confuse other vehicle drivers.

Q.

(a) A diagram has 5 lines of symmetry. Draw all the lines of symmetry and then divide the figure into 10 parts. Given here is a part of the diagram. Complete the diagram. [4 MARKS]

(b) How many lines of symmetry does a polygon with its adjacent sides equal and perpendicular have?

Q.

Which of the following have both horizontal and vertical lines of symmetry?

1. X

2. E

3. M

4. K

Q. (a) What is required for a kaleidoscope to produce images?
(b) Do the images so produced have any line of symmetry? If yes, what determines the number of lines of symmetry? [3 MARKS]

Q.

Question 72

Draw the images of the points A, B, and C in the line m (figure). Name them as A`, B` and C` respectively and join them in pairs. Measure AB, BC, CA, A`B`, B`C` and C`A`. Is AB = A`B`, BC = B`C`, and CA = C`A`?

Q.

Question 23

Fill in the blanks to make the statements true.

If an angle of measure ${80}^o$ is reflected in a line of symmetry. then the reflection is a ___ of measure ___.

Q.

Question 69

Draw the images of points A and B in line $l$ of the figure and name them as A` and B`, respectively. Measure AB and A`B`. Are they equal?

Q.

Write T for true and F for False

The line of symmetry is of an object is also called its axis of symmetry.

1. True
2. False

Q.

Copy the following on a squared paper. A square paper is what you would have used in your arithmetic notebook in earlier classes. Then complete them such that the dotted line is the line of symmetry.

(a)	(b)	(c)
(d)	(e)	(f)

Q.

A milkman wants to park his bike at some point Q and deliver the milk to two different houses A and B. Where should he park the bike so that his walking distance AQ + BQ will be minimum? [4 MARKS]

Q.

What do we actually mean by a figure having two lines of symmetry?

1. There exist only one line with respect to which the two halves are mirror images of each other

2. There exist two different lines in the figure with respect to which the respective halves are mirror images of each other

3. There does not exist any line from where the halves are mirror images of each other

4. None of these

Q.

Question 73

Draw the images P`, Q`, and R` of the points P, Q, and R respectively in the line $n$. Join P`Q` and Q`R` to form an angle P`Q`R`. Measure $\angle PQR$ and $\angle P‘Q‘R‘$. Are the two angles equal?

Q.

Question 22

Fill in the blanks to make the statements true.

If a line segment of length 5 cm is reflected in a line of symmetry (mirror), then its reflection (image) is a ___ of length ___.

Q. Honeybees have .

1. point symmetry
2. bilateral symmetry
3. radial symmetry

Q.

Draw lines of symmetry of given alphabet.

Q.

Draw lines of symmetry of given alphabet.

Q.

If a line segment of length 10 cm is reflected in a line of symmetry (mirror), then the reflection is a line of length ____.

1. 10 cm

2. 15 cm

3. 20 cm

4. 5 cm

Q.

Which one of the following letters of English alphabets has more than 1 line of symmetry?

1. Letters A, H, I, M, W have a vertical mirror reflectional symmetry.

2. Letters B, C, D, E, H have a horizontal mirror reflectional symmetry.

3. Letters O, X have both horizontal and vertical mirror reflectional symmetry.

4. All of the statements are correct.

Q.

The image of the point (-5, -6) when reflected in the origin is ___

1. (5, 6)

2. (5, -6)

3. (-5, 6)

4. None of these