Q1. Write the numbers from 0 to 9.
(i). Which numbers have a line of symmetry?
(ii). List out the numbers which do not have a line of symmetry.
Sol:
(i) Numbers  12345679ACDHHOOKICEKKICKMnotoneTWXYYes and  12345679ACDHHOOKICEKKICKMnotoneTWXYYes have  12345679ACDHHOOKICEKKICKMnotoneTWXYYes line of symmetry.
(ii) Numbers  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes and  12345679ACDHHOOKICEKKICKMnotoneTWXYYes do  12345679ACDHHOOKICEKKICKMnotoneTWXYYes have a line of symmetry.

Q2. Form words using the letters B, C, D, E, H, I, J, K, O and X. Write those words in paper in capital letters. Turn it upside down and look at them in the mirror.
(i). list the letters which have horizontal and vertical line of symmetry
(ii). Do the words HIKE, DICE, COOK remain unchanged in the mirror?
(iii). Thewords which you have found that remain unchanged in the mirror are ___________, ___________, ______________.
sol :
(i) Vertical lines of symmetry  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes, I,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes, O,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes, U, V,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes, X,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes
Horizontal lines of symmetry B,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes, E,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes, I,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes, O,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes
(ii)  12345679ACDHHOOKICEKKICKMnotoneTWXYYes
(iii)  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes,  12345679ACDHHOOKICEKKICKMnotoneTWXYYes