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GB-26-02-001 · Circumference from diameter

13.5 m
Diagram not accurately drawn

A wheel has diameter 13.5 m. Work out its circumference to 2 decimal places.

Circumference from Diameter Booklet p. 83 & p. 94
Method
Use Circumference = πd (or 2πr where r = d/2)
Worked Example (GB-26-02-001)
1)
π×13.5\pi\times 13.5
2)
42.41 m
Ans = 42.41 m