Question

The dimensions of a photograph are 40 cm X 20 cm, what length of wooden frame is needed to frame the photograph?

Answer 1

Step-by-step explanation:

$perimeter = 2(length + breadth) \\ = 2(40 + 20) \\ = 2(60) \\ = 120cm \\ so \: the \: wooden \: frame \: needs \: to \: be \: 120cm$

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