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Find the unknown measure of the rectangle 9m perimeter=42 meters
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Find the unknown measure of the rectangle 9m perimeter=42 meters

User Hgrey
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12m; if one side is 9m then that means 42 - 9 - 9 would yield the size of the two remaining sides together. 42-18=24 24 divided between the two sides left means each remaining side had to be 12m
User Esmir
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