Question

radius =
5.5

diameter =
11

(there is a circle with a radius line labeled 11 m in the image)

Explanation:

Step1: Identify given value

The given length is the radius: $r = 11\ \text{m}$

Step2: Correct radius value

The labeled length is the radius, so it stays unchanged.

Step3: Calculate diameter

Diameter is twice the radius: $d = 2r$
$d = 2 \times 11 = 22\ \text{m}$

Answer:

radius = $11\ \text{m}$
diameter = $22\ \text{m}$