Final answer:
The working diameter of a crane with a working radius of 28 meters is 56 meters, calculated using the diameter formula D = 2r.
Step-by-step explanation:
A student has posed a question regarding a deck crane used for lifting heavy objects. Specifically, they're asking about the crane's working diameter, given that it has a working radius of 28 meters and can rotate 360°.
To find the working diameter, we simply need to use the relationship between a circle's radius and its diameter, which is D = 2r, where D is the diameter and r is the radius.
Therefore, the working diameter of the crane is:
D = 2 × 28 m
D = 56 m
The working diameter of the crane is 56 meters.