Rectilinear Figures, SM-Bank 012

Penelope made a shape using 6 identical squares.

What is the perimeter of the shape? (2 marks)

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\(108\ \text{cm}\)

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\(\text{Length of 1 side}\)	\(=\dfrac{27}{3}\)
	\(=9\ \text{cm}\)

\(\therefore\ \text{Perimeter}\)

\(= (10\times 9) + (4\times 4.5)\)

\(= 90 + 18\)

\(=108\ \text{cm}\)