alleryThe circumference of a circle of diameter d is:
Api plus d
Bd divided pi
Cpi times d
Dtwo times d
Answer & Solution
Correct answer: C. pi times d
1. The C by D ratio is the same for every circle.
2. That ratio is called pi.
3. So the circumference is pi times the diameter.
4. The answer is pi times d.
_Source: syllabus Mathematics, Ch 6 'Measuring Space: Perimeter and Area'_
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