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maw [93]
3 years ago
11

Find the circumference of the circle. Round your answer to the nearest hundredth. Use 3.14 or 227 for π.

Mathematics
1 answer:
Lelu [443]3 years ago
6 0

Answer:

65.94cm

Step-by-step explanation:

The two equivalent equations to find the circumference of a circle are:

Circumference = 2 * pi * radius

Circumference = pi * diameter

Since the diameter of the circle is given, in order to find circumference, plug in 21cm into the 2nd equation:

Circumference = pi * diameter = pi * 21 cm = 3.14 * 21 = 65.94 cm

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