# Q 11.     A piece of string is 30 cm long. What will be the length of each side if the string is used to form :            (a) a square?             (b) an equilateral triangle?             (c) a regular hexagon?

Given that,

Length of the string is 30 cm
(a)For square,
Number of sides = 4
Therefore, Length of one side = 30 /4 = 7.5 cm

(b)For equilateral triangle,
Number of sides = 3
Therefore, length of sides = 30/3 = 10cm

(c) For a regular hexagon,
Number of sides = 6
Therefore, Length of one side = 30/6 = 5cm

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