Ramu is buying lace to run along the edge of a rectangular tablecloth, and also the cloth from which the tablecloth itself will be cut. Which quantity does he need for each, in that order?

Question

Accepted Answer

Perimeter for the lace, then area for the cloth.. Lace runs along the boundary, so that is the perimeter — a length, in cm or m. The cloth has to cover the whole surface, so that is the area, in cm² or m². Swapping the two is the classic mensuration mix-up: boundary means perimeter, covering means area.

Ramu is buying lace to run along the edge of a rectangular tablecloth, and also the cloth from which the tablecloth itself will be cut. Which quantity does he need for each, in that order?

Step-by-Step Solution

Key idea: Perimeter — the journey around

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