Question

A square of side 1cm is joined to a square of side 3cm . find the perimeter​

Answer 1

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14cm..

Answer 2

$Perimeter \: of \: Square \\ \\ = (4×length \: of \: each \: side)$

$= (4 \times 3cm) + (4 \times 1cm) - 2(1cm) \\ \\ = 12cm + 4cm - 2cm \\ \\ = 12cm + 2cm \\ \\ = 14 \: cm$