Question

has a circumference of \\(36\pi\text{ cm}\\).

what is the length of the radius, \\(r\\)?

• \\(6\text{ cm}\\)
• \\(18\text{ cm}\\)
• \\(36\text{ cm}\\)
• \\(72\text{ cm}\\)

Explanation:

Set up the circumference equation

$$ C = 2\pi r $$

Substitute the given circumference and solve for r

$$
LATEXBLOCK0
$$

Answer:

• (A) 6 cm
• (B) 18 cm (Correct answer)
• (C) 36 cm
• (D) 72 cm