Find the circumference and the area of a circle with radius 2cm. Use the value 3.14 for n, and do not round your answers. Be sure to include the correct units in your answers.
Question
Find the circumference and the area of a circle with radius 2cm. Use the value 3.14 for n, and do not round your answers. Be sure to include the correct units in your answers.
Solution
To find the circumference and the area of a circle, we use the formulas:
Circumference = 2πr Area = πr²
Given that the radius (r) is 2cm and π is approximately 3.14, we can substitute these values into the formulas.
For the circumference: Circumference = 2 * 3.14 * 2 = 12.56 cm
For the area: Area = 3.14 * (2)² = 3.14 * 4 = 12.56 cm²
So, the circumference of the circle is 12.56 cm and the area of the circle is 12.56 cm².
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