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10 questions from this quiz
Distance from centre to edge
Distance across through centre
Distance around the edge
Diameter = 2 × radius
C=πdC = \pi dC=πd
C=2πrC = 2\pi rC=2πr
π=3.142\pi = 3.142π=3.142
37.70cm
38.2cm
At the very end only
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