Fig. 1 shows a photograph of a woodlouse.
Image courtesy of Donald Hobern. Licensed under Creative Commons Attribution 2.0 Generic license. Reused and distributed under conditions found at: https://creativecommons.org/licenses/by/2.0/deed.en.
Fig. 1
(i)
Draw a large diagram of the woodlouse in Fig.1.
[4]
(ii)
The magnification of the woodlouse in Fig.1 is ×9.
The length of line PQ is 48 mm.
Calculate the actual width of the woodlouse using the formula and the measurement of line PQ.
Give your answer to three significant figures.
[2]
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