Question

Select all units that could be used to measure area. Remember, we measure area with squares of the same size.

(a) cm²
(b) m²
(c) square inches
(d) miles²

Answer 1

The units that could be used to measure area are (a) cm², (b) m², and (c) square inches.

Step-by-step explanation:

Area is a measure of the amount of space enclosed by a two-dimensional shape. It is expressed in square units, and the units listed—cm², m², and square inches—are all appropriate for measuring area.

(a)
`\( \text{cm}^2 \)` refers to square centimeters, where each side of the square is 1 centimeter long. This unit is commonly used for smaller areas, especially in metric contexts.

(b)
`\( \text{m}^2 \)` represents square meters, where each side of the square is 1 meter long. This unit is frequently used for larger areas, such as the total area of a room or a piece of land.

(c) Square inches refer to the area enclosed by a square with sides each measuring 1 inch. This unit is commonly used in imperial systems, particularly in the United States.

(d)
`\( \text{miles}^2 \)` represents square miles, but this unit is more appropriate for measuring large land areas, such as the area of countries or states, rather than everyday measurements.

In summary, options (a), (b), and (c) are suitable units for measuring area in various contexts, while option (d) is not typically used for smaller-scale measurements.