To determine how much flooring is needed for a room that is 10 feet wide and 20 feet long, we can follow these steps:
1. First, identify the dimensions of the room:
- Width: 10 feet
- Length: 20 feet
2. Next, calculate the area of the room, which can be done by multiplying the width by the length. The formula for the area is:
[tex]\[
\text{Area} = \text{Width} \times \text{Length}
\][/tex]
3. Substitute the given values into the formula:
[tex]\[
\text{Area} = 10 \, \text{feet} \times 20 \, \text{feet}
\][/tex]
4. Perform the multiplication:
[tex]\[
\text{Area} = 200 \, \text{square feet}
\][/tex]
So, the area of the room, and hence the amount of flooring needed, is 200 square feet.
Therefore, the correct answer is:
D) 200 sq ft
