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Mensuration and trigonometry answer explanations

Review worked answers and explanations for Mensuration and trigonometry. Aligned to OCR Gcse Mathematics.

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A gardener is planning to put a fence around a flower bed. The flower bed is an L-shape, as shown in the diagram. All corners are right angles. [Diagram: An L-shaped figure. The outer horizontal length is 10 m. The outer vertical length is 8 m. Inside the 'L', from the inner corner, there's a horizontal segment of 4 m and a vertical segment of 3 m. The diagram implies other sides need to be calculated.] Calculate the total length of fencing needed for the perimeter of the flower bed. [3 marks]

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