Step 1: Understand the question:
A sales territory is a set of customers and area given to one salesperson.
Its shape depends on where the customers are and how they are spread.
We must pick the shape that suits a firm selling machines to sugar mills.
Step 2: Look at the customers:
Sugar mills are few in number.
They are not spread evenly across a region. They sit only in sugarcane-growing belts, near the cane fields.
So the customers form scattered clusters with large empty gaps between them.
Step 3: Match the shape to the customers:
A circular territory suits customers spread evenly around a centre. A wedge territory suits a big city with a dense core and thin outer parts.
Neither fits scattered mills. The territory must follow the actual location of the mills, along roads and rail routes.
Such a territory has no regular geometric form. It is an irregular shaped territory.
Final Answer:
The sales territory of a company making machines for sugar mills would be irregular in shape, because the mills are located unevenly.