Question

1. using radius

a. to find the circumference using the radius, use the formula \\(c = 2\pi r\\).

b. example: if the radius is type answer here, then the circumference is \\(2 \times 12.75 \times \pi\\).

c. note: the radius is half of the diameter.

Explanation:

Identify the given formula and values

$$
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$$

Match the radius variable

$$ R = 12.75 $$

Answer:

Example: If the radius is <blank>12.75</blank>, then the circumference is \(2 \times 12.75 \times \pi\).