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Area, SM-Bank 053

The following shape has a perimeter of 12.4 centimetres. Calculate its' area.  (2 marks)

 

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\(9.61\ \text{cm}^2\)

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\(\text{Perimeter}\) \(=12.4\ \text{cm}\)
\(\therefore\ \text{Side}\) \(=\dfrac{12.4}{4}\)
  \(=3.1\ \text{cm}\)

 

\(\text{Area}\) \(=s^2\)
  \(=3.1^2\)
  \(=9.61\ \text{cm}^2\)