Final Answer:
The statement perimeter or area would be used to find the quantity of belt needed for a waist correct option is b. Perimeter
Step-by-step explanation:
To find the quantity of belt needed for a waist, you would use the measurement of perimeter. The perimeter (also known as the circumference in this context) is the measurement around the outer boundary of a shape.
In the case of a waist, you're essentially measuring the distance around the waist, which corresponds to the perimeter.
On the other hand, area is used to measure the space inside a two-dimensional shape and is not applicable for determining belt length.
In summary, for waist measurements, you would consider the perimeter.