CLASS –VII Mathematics (Symmetry)
1. A regular hexagon has order of rotation ________________________________.
2. A rhombus has order of rotation _______________________________________.
3. Name any two figures that have both line symmetry and rotational symmetry.
4. Given the line of symmetry, find the other hole:
5. State the number of lines of symmetry in rectangle.
6.
What other name can you give to the line of symmetry of:
a.
an isosceles triangle
b.
a circle
7. Define rotational symmetry.
8. In the following figure, the mirror line (i.e., line of symmetry) is given as a dotted line.
Complete each figure performing reflection in the dotted line. Are you able to recall the name of the figure you complete?
Answers
1.
2.
3.
6
4
Circle and sqaure
4.
5.
2
6.
a.
b.
Median
Diameter
7.
If, after a rotation, an object looks exactly the same, we say that it has a rotational
symmetry.
8.
This is pentagon.