Advertisements
Advertisements
Question
Use graph paper for this question. (Take 2 cm = 1 unit along both x and y-axis.) Plot the points O(0, 0), A(-4, 4), B(-3, 0) and C(0, -3)
1) Reflect points A and B on the y-axis and name them A’ and B’ respectively. Write down their coordinates.
2) Name the figure OABCB’A’.
3) State the line of symmetry of this figure
Solution
1)
A’ = (4, 4) AND B’ = (3, 0)
2) The figure is an arrowhead
3) The y-axis is the line of symmetry of figure OABCB’A’.
APPEARS IN
RELATED QUESTIONS
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.
Construct a regular hexagon of side = 3.8 cm and draw all its lines of symmetry .
Draw the lines of symmetry of the following.
Draw and answer the following.
A triangle which has no line of symmetry
The number of capital letters of the English alphabets having only horizontal line of symmetry is ______.
A regular octagon has 10 lines 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 | ______ |
Trace the figure and draw the lines of symmetry, if any:
Consider the letters of English alphabets, A to Z. List among them the letters which have vertical lines of symmetry (like A).
Consider the letters of English alphabets, A to Z. List among them the letters which have no lines of symmetry (like Q)
