done Symmetry

• question_answer1)
  List any four symmetrical objects from your home or school.
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• question_answer2)
  For the given figure, which one is the mirror line, \[{{l}_{1}}\] or \[{{l}_{2}}\]?
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• question_answer3)
  Identify the shapes given below. Check whether, they are symmetric or not. Draw the line of symmetry as well. TIPS We know that, if we place a mirror on the fold, then the image of one side of picture will fall exactly on the other side of the picture, then the fold, which is the mirror line, is a line of symmetry for the picture.   
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• question_answer4)
  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.
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• question_answer5)
  In the figure, \[l\] is the line of symmetry. Complete the diagram to make it symmetric.               
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• question_answer6)
  In the figure, \[l\] is the line of symmetry. Draw the image of the triangle and complete the diagram, so that it becomes symmetric.                                    
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• question_answer7)
  Find the number of lines of symmetry for each of the following shapes.

  (a)		(b)		(c)
  (d)		(e)		(f)
  (g)		(h)		(i)

  TIPS If we fold a picture about a line such that the one half fits exactly over the other half, then this line is called the line of symmetry.
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• question_answer8)
  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. (a)             (b)           (c)             (d)
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• question_answer9)
  Complete the following table.

  Shape	Rough figure	Number of lines of symmetry
  Equilateral triangle		3
  Square
  Rectangle
  Isosceles triangle
  Rhombus
  Circle

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• question_answer10)
  Can you draw a triangle which has       (a) exactly one line of symmetry? (b) exactly two lines of symmetry? (c) exactly three lines of symmetry? (d) no lines of symmetry?
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• question_answer11)
  On a squared paper, sketch the following. (a) A triangle with a horizontal line of symmetry but no vertical line of symmetry. (b) A quadrilateral with both horizontal and vertical lines of symmetry. (c) A quadrilateral with a horizontal line of symmetry but no vertical line of symmetry. (d) A hexagon with exactly two lines of symmetry. (e) A hexagon with six lines of symmetry. (Hint: It will be helpful, if you first draw the lines of symmetry and then complete the figures.)
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• question_answer12)
  Trace each figure and draw the lines of symmetry, if any (a)                             (b)          (c)                              (d) (e)               (f)
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• question_answer13)
  Consider the letters of English alphabets A to Z. List among them the letters which  have                                   (a) vertical lines of symmetry (like A).        (b) horizontal lines of symmetry (like B).    (c) no lines of symmetry (like Q).          
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• question_answer14)
  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.
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• question_answer15)
  Find the number of lines of symmetry in each of the following shapes. How will you check your answers? (a)            (b)                  (c)                       (d)                               (e) (f)
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• question_answer16)
  Copy the following drawing on squared paper. Complete each one of them such that the resulting figure has two dotted lines as two lines of symmetry. (a)       (b)       (c)        (d) (e)       (f) How did you go about completing the picture?
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• question_answer17)
  In each figure alongside, 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 of OEMNPHLTSVX]
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