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प्रश्न
Find the number of lines of symmetry for the following shape:
उत्तर
The number of symmetry lines of the given figure is 4.
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संबंधित प्रश्न
Use a graph paper for this question (Take 2 cms = 1 unit on both x and y-axis)
1) Plot the following points:A(0, 4), B(2, 3), C(1, 1) and D(2, 0)
2) Reflect points B, C, D on the y-axis and write down their coordinates. Name the images as B’, C’, D’ respectively
3) Join the points A, B, C, D, D’, C’, B’ and A in order, so as to form a closed figure. Write
down the equation of the line of symmetry of the figure formed
In the given figure, ABCDE is a pentagon inscribed in a circle such that AC is a diameter and side BC//AE.If
∠ BAC=50°, find giving reasons:
(i) ∠ACB
(ii) ∠EDC
(iii) ∠BEC
Hence prove that BE is also a diameter
In the following figures, the line of symmetry has been drawn with a dotted line. Identify the corresponding sides and the corresponding angles about the line of symmetry.
Complete the following figure, about the given lines of symmetry which are shown by dotted lines and name the figure thus obtained:
Match the following shapes with their number of lines of symmetry
| Column A | Column B | ||
| i) | Square | a) | No line of symmetry |
| ii) | Parallelogram | b) | One line of symmetry |
| iii) | Isosceles triangle | c) | Two lines of symmetry |
| iv) | Rectangle | d) | Four lines of symmetry |
Draw a line of symmetry of the given figure such that one hole coincide with the other hole(s) to make pairs.
Which of the following letter does not have a line of symmetry?
Open your geometry box. There are some drawing tools. Observe them and complete the following table:
| Name of the tool | Number of lines of symmetry |
| (i) The Ruler | ______ |
| (ii) The Divider | ______ |
| (iii) The Compasses | ______ |
| (iv) The Protactor | ______ |
| (v) Triangular piece with two equal sides | ______ |
| (vi) Triangular piece with unequal sides | ______ |
Complete the figure by taking l as the line of symmetry of the whole figure.
Find the number of lines of symmetry in the following shapes. How will you check your answers?
