Question
PSLE
Usha has some cards in the shape of rhombuses of sides 10 cm. She placed them in a row to form a parallelogram of perimeter 220 cm. How many cards did Usha use?
2 m

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PSLE
Usha has some cards in the shape of rhombuses of sides 10 cm. She placed them in a row to form a parallelogram of perimeter 220 cm. How many cards did Usha use?