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A group of children from Manorfield Primary School, Stoney Stanton sent in lots of ideas:
S.B. and N.L. produced the following table of results:
Number | Shape | Number of pebbles on side | Area of shape | Perimeter of shape |
1 | Square | 2x2 | 1cm$^2$ | 4cm |
2 | Rectangle | 2x3 | 2cm$^2$ | 6cm |
3 | Square | 3x3 | 4cm$^2$ | 8cm |
4 | Rectangle | 3x5 | 8cm$^2$ | 12cm |
5 | Square | 5x5 | 16cm$^2$ | 16cm |
6 | Rectangle | 5x9 | 32cm$^2$ | 24cm |
7 | Square | 9x9 | 64cm$^2$ | 32cm |
8 | Rectangle | 9x17 | 128cm$^2$ | 48cm |
A.H and E.R also said:
Well done all of you - you obviously worked hard on this problem.