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What is the circumference of a circle with a radius of 2.5 meters? Approximate using [tex]\pi = 3.14[/tex].

A. 61.62 meters
B. 19.63 meters
C. 15.70 meters
D. 7.85 meters


Sagot :

To determine the circumference [tex]\( C \)[/tex] of a circle with a given radius [tex]\( r = 2.5 \)[/tex] meters and using the approximation [tex]\(\pi = 3.14\)[/tex], we employ the formula for the circumference of a circle:

[tex]\[ C = 2 \pi r \][/tex]

First, we substitute the given values into the formula:

[tex]\[ C = 2 \times 3.14 \times 2.5 \][/tex]

Next, we proceed with the multiplication in steps.

1. Calculate the product of [tex]\( 2 \)[/tex] and [tex]\( 2.5 \)[/tex]:

[tex]\[ 2 \times 2.5 = 5 \][/tex]

2. Now, multiply this result by [tex]\( 3.14 \)[/tex]:

[tex]\[ 5 \times 3.14 = 15.70 \][/tex]

Thus, the circumference of the circle is:

[tex]\[ C = 15.70 \text{ meters} \][/tex]

After comparing with the options given, the correct answer is:

[tex]\[ 15.70 \text{ meters} \][/tex]