Question

A boy wants to buy new shoes. To find out his correct shoe size the _ _ _ _ _ _ _ _ of his feet should be measured.
A. Length
B. Thickness
C. Area
D. Volume

Answer 1

The thickness of the feet has nothing to do with the size of shoes. The size of the shoes is given in UK size or Euro size. Recall the factor used to measure the size of the shoes.A standard unit of measurement is a quantifiable language that helps everyone understand the association of the object with the measurement.

Complete answer:
The question is based on units and measurement. As we know when we go to buy new shoes, we ask the shopkeeper to show us the shoe of size 8, 9 or 10. This size indicates the shoe of size 8 inch, 9 inch or 10 inch respectively. We know that an inch is a unit of length measurement. Thus, we can say, the shoe size and the size of the feet must be measured as length of the feet. Shoes also come in Euro size that is the size of the feet in centimeters. So, the correct answer is option A.

The thickness of the feet has nothing to do with the size of shoes. Therefore, option B is incorrect.If we want to measure the area of the feet, we can take the product of length and width of the feet. But the size of shoes comes only in terms of the length of the feet.Therefore, it is of no avail to measure the area of the feet. Thus, the option C is incorrect.

If we want to measure the volume of the feet, we can take the product of length, width and height of the feet. But the size of shoes comes only in terms of the length of the feet. Therefore, it is of no use to measure the area of the feet. Thus, the option D is incorrect.

So, the only correct answer is option A.

Note: The length can be measured in centimeter, meter or in inches but while using it in the formula, to get the answer in S.I units, you should convert the length in meter. The length and the thickness are both measured in meter or centimeter. The area can be expressed as the square of the length.