Question
PSLE
Risa has some cards in the shape of rhombuses of sides 8 cm. She placed them in a row to form a parallelogram of perimeter 320 cm. How many cards did Risa use?
2 m

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PSLE
Risa has some cards in the shape of rhombuses of sides 8 cm. She placed them in a row to form a parallelogram of perimeter 320 cm. How many cards did Risa use?