Question

(i) In the following pattern, draw the next two figures.

(ii) Construct a table to describe the figures in the above pattern.

(iii) If n denotes the number of figure and L denotes the number of matches, find L in terms of n.

(iv) Find how may matches are required to make the :

(1) 12th figure

(2) 20th figure

Answer 1

(iii) L = 2n

(iii) (1) 12th figure

12th figure has = 2 x 12 = 24

(2) 20th figure = 2 x 20 = 40