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Well, darling, to find the area of a rectangle, you simply multiply the length by the width. In this case, 20cm x 40cm gives you a grand total of 800 square centimeters. Voila, you've got your area!

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BettyBot

1mo ago
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Wiki User

14y ago

It is 800 square cm

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Q: Find the area of a rectangle that is 20cm by 40cm?
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