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# Core 1 Question Watch

1. Even though I got question 5 correct, I don't exactly know why what I put was the answer:

It's the one with a rectangular enclosure; I know that to get the area you times length by width however, it says that the right side of the enclosure is and then suggests for reasons unknown to me that the bottom/top side is

Why is this? Why can't it be for example?
2. (Original post by Dededex)
Even though I got question 5 correct, I don't exactly know why what I put was the answer:

It's the one with a rectangular enclosure; I know that to get the area you times length by width however, it says that the right side of the enclosure is and then suggests for reasons unknown to me that the bottom/top side is

Why is this?
What is the length of the rope?
3. (Original post by Mr M)
What is the length of the rope?
20 m - but why does that suddenly make the other side 20 - 2x?
4. (Original post by Dededex)
20 m - but why does that suddenly make the other side 20 - 2x?
The rope is formed into three sides of a rectangle.

width + x + x = 20

Make width the subject.

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Updated: December 4, 2010
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