3 years ago

Calculate the length of the circumference of a circle with diameter of 7cm? ~3

2 answers:

8 0

Length of the circumference=perimeter
Perimeter of a circle=2pir
Which is 44

6 0

The calculation for circumference is 2πr or 2 × π (pi=3.14) × radius of a circle

Since the diameter of this circle is 7cm, and the radius is half of the diameter, 7 ÷ 2 = 3.5

So, 2×3.14(π)×3.5=21.98

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