Exam-Style Question on Mensuration
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 609. This question is similar to one that appeared on a GCSE Higher paper in 2020. The use of a calculator is allowed.
The diagram shows a red square placed on top of a grey square.
The length of each side of the grey square is 4cm longer than the length of each side of the red square.
The area of the grey square is 56cm2 greater than the area of the red square.
Find the area of the grey square giving your answer correct to 3 significant figures.
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