While forming different rectangles by arranging 16 unit square crackers, which of the following arrangement will have the maximum perimeter?
A
16×1
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B
8×2
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C
4×4
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D
All of them will have equal perimeters.
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Solution
The correct option is A16×1 Rearranging 16 unit square crackers, we get the following three combinations:
Figure 1. 16×1
For this arrangement, its perimeter =2×(16+1)=34 units.
Figure 2. 2×8
For this arrangement, its perimeter =2×(8+2)=20 units.
Figure 3. 4×4
For this arrangement, its perimeter =2×(4+4)=16 units. ∴1×8 arrangement will have the maximum perimeter.