Advertisements
Advertisements
प्रश्न
Draw an equilateral triangle each of whose sides is 4 cm. Draw all its lines of symmetry.
उत्तर
Three lines of symmetry (medians or altitudes or right bisectors).
APPEARS IN
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
Use a graph paper to answer the following questions (Take 1 cm = 1 unit on both axes)
1) Plot A(4,4), B(4,-6) and C(8,0), the vertices of a triangle ABC.
2) Reflect ABC on the y-axis and name it A’B’C’.
3) Write the coordinates of the images A’, B’ and C’.
4) Give a geometrical name for the figure AA’ C’ B’ BC.
5) Identify the line of symmetry of AA’ C’ BC’.
Draw the line of symmetry of the following figure and also mark their points of symmetry, if any:
Complete the following figure, about the given lines of symmetry which are shown by dotted lines and name the figure thus obtained:
Draw a diagram and name the figure in the following:
A quadrilateral having only one line 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 among the following pictures will look the same on half a turn?
The image of a point lying on a line l with respect to the line of symmetry l lies on ______.
| Shape | Number of lines of symmetry |
| (i) Isosceles triangle | (a) 6 |
| (ii) Square | (b) 5 |
| (iii) Kite | (c) 4 |
| (iv) Equilateral triangle | (d) 3 |
| (v) Rectangle | (e) 2 |
| (vi) Regular hexagon | (f) 1 |
| (vii) Scalene triangle | (g) 0 |
On a squared paper, sketch the following:
A quadrilateral with a horizontal line of symmetry but no vertical line of symmetry.
