Q.1 Find the rule which gives the number of matchsticks required to make the following matchsticks patterns. Use a variable to write the rule.

(a) Pattern of letter = 2n (as two matchstick used in each letter)
(b) Pattern of letter = 3n (as three matchstick used in each letter)
(c) Pattern of letter = 3n (as three matchstick used in each letter)
(d) Pattern of letter = 2n (as two matchstick used in each letter)
(e) Pattern of letter = 5n (as five matchstick used in each letter)
(f) Pattern of letter = 5n (as five matchstick used in each letter)
(g) Pattern of letter = 6n (as six matchstick used in each letter)