EXERCISE
R. D. Sharma Mathematics Solutions for EXERCISE
Simple step-by-step solutions to EXERCISE questions of Symmetry from Mathematics for Class 7. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from EXERCISE with Hints & Solutions
Give an example of a letter of the English alphabet which has rotational symmetry of order .
What is the line of symmetry of a semi-circle? Does it have rotational symmetry?
Draw, whenever possible, a rough sketch of a triangle with both line and rotational symmetries.
Draw, whenever possible, a rough sketch of a triangle with only line symmetry and no rotational symmetry.
Draw, whenever possible, a rough sketch of a quadrilateral with rotational symmetry but not a line of symmetry.
Draw, whenever possible, a rough sketch of a quadrilateral with line symmetry but not rotational symmetry.
| Figures | Centre of rotation | Order of rotation | Angle of rotations |
| Square | _____ | _____ | _____ |
| Rectangle | _____ | _____ | _____ |
| Rhombus | _____ | _____ | _____ |
| Equilateral triangle | _____ | _____ | _____ |
| Regular hexagon | _____ | _____ | _____ |
| Circle | _____ | _____ | _____ |
| Semi-Circle | _____ | _____ | _____ |
| English alphabet Letter | Line Symmetry | Number of Lines of Symmetry | Rotational Symmetry | Order of Rotational Symmetry |
| Z | Nil | 0 | Yes | 2 |
| S | _____ | _____ | _____ | _____ |
| H | Yes | _____ | Yes | _____ |
| O | Yes | _____ | Yes | _____ |
| E | Yes | _____ | _____ | _____ |
| N | _____ | _____ | Yes | _____ |
| C | _____ | _____ | _____ | _____ |
