Question 18 of 108 in Unit 10

Number 10

2 marks · Hard

The length of one side of a square is cm. Express the area of the square in the form cm², where and are integers and is as small as possible.

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18\,\text{cm}^2 cm^2

Also accept: 18 cm^2; 18

Common mistakes: Giving area as 9\sqrt{4}; Leaving answer as 9×2

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Marking points

M1 · 1 mark · Squares correctly or shows correct method for

A1 · 1 mark · Gives final answer or

Worked solution

Area = (side length)

So, the area is .

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