A 30 cm long green thread is used to measure the perimeter of the given figure as shown. What is the perimeter of the figure? [ 2 Marks ]

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Solution

We can see that the thread has only encircled half of the figure. So, the perimeter of the figure will be twice the length of the thread. [ 1 Mark ]

Length of thread = 30 cm x 2 = 60 cm. [ 1 Mark ]

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