Page 154 - Viva

Example 1: Identify the unit of repeat in the given patterns.

(a) (b) 2 2 5 1 2 2 5 1 2 2 5 1

(c) A C A B A C A B A C A B (d)

Solution: (a) (b) 2 2 5 1 (c) A C A B (d)

Example 2: Look at the following arrangements to see whether they form repeating
patterns or not.

(a)

(b)

(c) 1, 7, 10, 12, 16, 19, 31, 33, 51, 60, 80
Solution: (a) In the given arrangement, the unit of repeat is a square followed by a
triangle which is then followed by a circle. Hence, it forms a repeating

pattern.
(b) Since there is no unit of repeat in the given arrangement of figures, it
does not form a repeating pattern.

(c) The given series of numbers does not have a unit of repeat. Hence, it
does not form a repeating pattern.

Exercise 11.1

1. Circle the unit of repeat in the given patterns.

(a)

(b) 9 4 7 9 4 7 9 4 7 9 4 7

(c)

(d)

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