Question
PSLE
Sabrina has some cards in the shape of rhombuses of sides 3 cm. She placed them in a row to form a parallelogram of perimeter 84 cm. How many cards did Sabrina use?
2 m

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PSLE
Sabrina has some cards in the shape of rhombuses of sides 3 cm. She placed them in a row to form a parallelogram of perimeter 84 cm. How many cards did Sabrina use?