Each of the letters H,I,N,O,S,X and Z has a rotational symmetry of order 2, since each one of these letters when rotated through`180^(@)` and `360^(@)` will fit exactly onto itself each time.

Each of the letters H,N,S and Z has a rotational symmetry of order ____________.

Show that each of the letters H , I , N , S , X and Z has a rotational symmetry of order 2. Also, mark the point of rotational symmetry in each case.

Give the order of rotational symmetry for each of the following figures when rotated about the marked point (x):

_______and ____________are the capital letter of English alphabets that have one line of symmetry but they interchange to each other when rotated through 180^(@) .

ROTATIONAL SYMMETRY A figure is said to have rotational symmetry if it fits onto itself more than once during a full turn i.e.rotation through 360^(@).

Each of the 11 letters A,H,I,M,O,T,U,V,(W,X and Z appears same when looked at in a mirror.They are called symmetric letters.Other letters in the alphabet are asymmetric letters.How many three letter computer passwords can be formed (no repetition allowed )with at least one symmetric letter?

Each of the following letters from English alphabet has two lines of symmetry. Identify lines of symmetry in each case: (i) H (ii) I (iii) O

Each of the following question is based on the following alphabet series : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z K L M N O P Q R S Which letter is fourth to the right of the letter immediately to the left of the letter immediately to the left of the letter which is third to the right of the letter immediately to the left of the letter L ?

Each question is based on the following alphabet-series : A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A B C D E F G H Which letter is second to the left of the letter immediately to the left of the letter which is fourth to the right of the letter immediately to the left of the letter which is second to the left of the letter D?