21. The diameter of a circular plate is 12.5 cm How many plates of the sa required to place in a straight row to cover 9.375 m length with
22. The diameter of a circular coins is 1.15 cm. How many coins of the s
(b) Find the area of a rectangle
between each plates
required to place in a straight row to cover 4.60 m length without any
each coin?
23. A long pieces of ribbon is divided ints equal parts of each piece
22.25 cm long, how long was the original ribbon

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