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Question
A closed shape has 20 equal sides and one of its sides is 3 cm. Find its perimeter
Solution
Number of equal sides in the shape = 20
One of its side = 3 cm
Perimeter = length of one side × Number of equal sides
∴ Perimeter = (3 × 20) cm
= 60 cm
∴ Perimeter = 60 cm
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