Unit Conversion, SM-Bank 013

The square below has an area of 1 square centimetre.

1 cm² = _____ mm × _____ mm = _______ mm² (1 mark)

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A square has an area of 125 square centimetres.
Using the conversion equation, or otherwise, express the area of the rectangle in square millimetres. (1 mark)

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a. \(1\ \text{cm}^{2} = 10\ \text{mm}\ \times\ 10\ \text{mm}\ = 100\ \text{mm}^{2} \)

b. \(12\ 500\ \text{mm}^{2}\)

Show Worked Solution

a. \(1\ \text{cm}^{2} = 10\ \text{mm}\ \times\ 10\ \text{mm}\ = 100\ \text{mm}^{2} \)

b. \(125\ \text{cm}^{2}\)	\(= 125 \times 100\ \text{mm}^{2} \)
	\(= 12\ 500\ \text{mm}^{2} \)