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Area, SM-Bank 010

A square has an area of 169 square centimetres.

What is the perimeter?  (2 marks)

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\(52\ \text{cm}\)

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\(\text{Let}\ \ s=\text{side length of the square}\)

\(\text{Area:}\rightarrow\ \ s^2\) \(=169\)
\(s\) \(=\sqrt{169}\)
  \(=13\ \text{cm}\)

 

\(\therefore\ \text{Perimeter}\) \(=4\times 13\)
  \(=52\ \text{cm}\)

Filed Under: Quadrilaterals Tagged With: num-title-ct-core, smc-4943-10-Squares and rectangles

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