How many circles of radius 5 cm can be cut from a piece of cartolina measuring 42 cm by 32 cm? how much cartolina is thrown away?
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The radius is 5cm so the diameter is 10cm.
Therefore, you can have 6 circles one way and 7 the other (60/10 and 70/10).
6*7=42.
Answer, 42.
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