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Find missing length (opposite of 20cm below the quarter)
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20 cm = 11 cm = 9 cm
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Find the quarter arc
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Perimeter of the quarter arc =

Perimeter of the quarter arc =

Perimeter of the quarter arc = 17.28 cm (nearest hundredth)
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Find Perimeter of the figure
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* Add them up clockwise
Perimeter = 20 + 2 + 17.28 + 11 + 9 + 2
Perimeter = 61.28 cm
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Answer: 61.28cm---------------------------------------------------------------------------