Given a circle with the radius of 8cm. Find the circumference of this circle. Take π as 3.14.
The picture below shows the circle with the radius of 8cm.
To calculate the circumference, we can use the following formula:
The radius is given as 5cm. Hence, we can substitute r with 5. Similarly, we can substitute π with 3.14. After substituting these values, we can calculate for C:
Now, 50.24 only has meaning if we include the unit for it. Since the radius is in cm, the circumference will also be in cm. Hence:
Clearly, the answer is C.
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