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26 September, 13:57

A swimming pool fence was placed around a rectangular enclosure of length 12 m and width 8 m. A post was placed every 2 m. How many posts were needed?

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  1. 26 September, 14:52
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    P = 2 (L + W)

    P = 2 (12 + 8)

    P = 2 (20)

    P = 40 ... so there is 40 meters of fence around the pool. If a post was placed every 2 meters, then u would have (40 / 2) = 20 posts <=
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