Level 2 PSLE Dina has some cards in the shape of rhombuses of sides 4 cm. She placed them in a row to form a parallelogram of perimeter 168 cm. How many cards did Dina use?
Level 2 PSLE Dina has some cards in the shape of rhombuses of sides 4 cm. She placed them in a row to form a parallelogram of perimeter 168 cm. How many cards did Dina use?
Level 2
Aiden has a cardboard measuring 23 cm by 20 cm. He wants to cut 2-cm squares from the cardboard. What is the maximum number of 2-cm squares he can cut out?