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Worksheet Solution: Symmetry and Nets | Mathematics for Class 5 PDF Download

Q1: How many English alphabets are symmetrical?
Ans:

  • 14 letters have lines of symmetry either horizontally or vertically.
  • They are A, B, C, D, E, H, I, K, M, O, T, V, W, X.

Q2: How many lines of symmetry does these geometrical shapes have?

  1. Square
  2. Pentagon
  3. Rhombus
  4. Trapezium

Ans:

  1. Square: has 4 lines of symmetry
  2. Pentagon: has 5 lines of symmetry
  3. Rhombus: has 2 lines of symmetry
  4. Trapezium: has 0 lines of symmetry

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Q3: Which of the following shapes have rotational symmetry?

  1. Square
  2. Circle
  3. Hexagon
  4. Crescent

Ans:

  1. A square has a rotational symmetry of order 4
  2. Circle has a rotational symmetry at every angle of the circle
  3. Hexagon has rotational symmetry of order 6
  4. Crescent has rotational symmetry of order 2

Q4: Draw the lines of Symmetry for the following shapes.

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Ans: The Line of Symmetry for the given shapes are:

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Q5: Show translation symmetry to the following images

  1. Square
  2. Octagon
  3. Triangle

Ans:

  1. Square has been translated from the 1st Quadrant to the 3rd Quadrant.
  2. Hexagon Translated from the 2nd Quadrant to 3rd Quadrant
  3. Triangle translated from 2nd Quadrant to 4th Quadrant.

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Q6: How do reflection symmetry look for the following shapes?

  1. Star
  2. Moon
  3. Sun

Ans: The reflection for the Star, Moon and Sun appear the same as the original images

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Q7: Draw a shape that does not have symmetry.
Ans: 

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Q8: Does the image have a symmetry along x- axis?

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5Ans: The given image does not have symmetry along x- axis. However it is symmetrical diagonally.

Q9: How to make the given image symmetrical along the y-axis?
Ans:

Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Step 1: Remove the cell in the 1st row, 3rd column
Step 2: Add the 5th cell in the 1st column in the place of the 2nd column fourth row.

Q10: Colour the appropriate cells to make it symmetrical for the given image.
Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Ans: There are multiple ways to make the given image symmetrical. 3 methods are given below.

Method 1: Colour all cells with the same colour. (either grey or white) to make it symmetrical
Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Method 2:
Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

Method 3:
Worksheet Solution: Symmetry and Nets | Mathematics for Class 5

The document Worksheet Solution: Symmetry and Nets | Mathematics for Class 5 is a part of the Class 5 Course Mathematics for Class 5.
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FAQs on Worksheet Solution: Symmetry and Nets - Mathematics for Class 5

1. What is symmetry in geometry?
Ans.Symmetry in geometry refers to a property where a shape or object can be divided into two or more identical parts that are arranged in a balanced way around a central point, line, or plane. It can be classified into various types, such as reflective symmetry (mirror symmetry), rotational symmetry, and translational symmetry.
2. How do you identify lines of symmetry in a shape?
Ans.To identify lines of symmetry in a shape, you can fold the shape along a line to see if both halves match perfectly. If they do, that line is considered a line of symmetry. You can also visualize or draw potential lines and check for identical halves across those lines.
3. What are nets in geometry?
Ans.Nets in geometry are two-dimensional shapes that can be folded to form a three-dimensional object. A net is essentially a layout of the surfaces of a solid figure laid out flat. For example, a cube has a net consisting of six squares arranged in a specific configuration.
4. How do nets help in understanding three-dimensional shapes?
Ans.Nets help in understanding three-dimensional shapes by providing a visual representation of how the surfaces of a solid are connected. By studying a net, one can see how the faces of a shape come together and form the solid, making it easier to conceptualize and calculate surface area and volume.
5. Can all three-dimensional shapes be represented by nets?
Ans.Yes, all three-dimensional shapes can be represented by nets, although some shapes may have more than one possible net. For example, a cube can be represented by several different arrangements of its six square faces. Understanding these nets is crucial for visualizing and constructing three-dimensional objects.
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