Question
The figure shows a rectangular piece of paper with 3 rectangular stickers pasted on it. The stickers have a width of 10 cm each. Find the area of the region that is not covered by the stickers.
3 m

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The figure shows a rectangular piece of paper with 3 rectangular stickers pasted on it. The stickers have a width of 10 cm each. Find the area of the region that is not covered by the stickers.