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प्रश्न
Construct an isosceles triangle whose equal sides are 7 cm each and the base side is 5 cm. Draw all its lines of symmetry.
उत्तर
Steps of construction:
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संबंधित प्रश्न
Use a graph paper for this question taking 1 cm = 1 unit along both the x and y-axis :
1) Plot the points A(0, 5), B(2, 5), C(5, 2), D(5, -2), E(2, -5) and F(0, -5).
2) Reflect the points B, C, D and E on the y-axis and name them respectively as B’, C’, D’ and E’.
3) Write the coordinates of B’, C’, D’ and E’.
4) Name the figure formed by B C D E E’ D’ C’ B’.
5) Name a line of symmetry for the figure formed.
Draw a diagram and name the figure in the following:
A triangle with only one line of symmetry.
Which word has a vertical line of symmetry?
Think of all 2, 3 and 4 digit numbers which look the same on half a turn.
Example
- 2 digit numbers 11, ______, ______
- 3 digit numbers 101, 111, ______, ______, ______, ______, ______, ______
- 4 digit numbers 1001, 1111, ______, ______, ______, ______, ______
The number of lines of symmetry in a rectangle and a square are ______ (equal/unequal).
The image of a point lying on a line l with respect to the line of symmetry l lies on ______.
Find the number of lines of symmetry for the following shape:
Complete the following table.
|
Shape |
Rough figure |
Number of lines of symmetry |
|
Equilateral triangle |
|
3 |
|
Square |
______ |
______ |
|
Rectangle |
______ |
______ |
|
Isosceles triangle |
______ |
______ |
|
Rhombus |
______ |
______ |
|
Circle |
______ |
______ |
Can you draw a triangle which has no lines of symmetry?
Trace the figure and draw the lines of symmetry, if any:
