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The formula for the circumference of a circle is [tex]C = 2\pi r[/tex]. Determine the circumference when the radius [tex]r[/tex] is 10 cm.

a. 100 cm
b. 20 cm
c. 62.8 cm
d. 31.4 cm

Please select the best answer from the choices provided.

Answer :

Final answer:

The circumference of the circle with a radius of 10 cm is approximately 63 cm.


Explanation:

The circumference of a circle can be found using the formula C = 2πr, where r represents the radius of the circle. In this case, the radius is given as 10 cm. Plugging in the value of r into the formula, we get C = 2π(10) = 20π cm. Since π (pi) is a mathematical constant approximately equal to 3.14159, we can approximate the circumference as 20 x 3.14159 = 62.8318 cm. Rounded to the nearest whole number, the circumference is approximately 63 cm.


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