what is the radius and diameter of the following circle?\n\nradius = cm\n\ndiameter = cm

Explanation:

Step1: Identify the radius from the image

The line segment from the center to the edge is $4.2\text{ cm}$.

Step2: Apply the diameter formula

$$d = 2 \times r$$

Step3: Calculate the diameter value

$$d = 2 \times 4.2 = 8.4\text{ cm}$$

Answer:

Radius = 4.2 cm Diameter = 8.4 cm