Question

A rectangle is 7 feet long by 4 feet wide. If 4 feet are removed from the length of the rectangle, what would be the area, in square feet, of the new rectangle?

Answer 1

To find the area of the new rectangle after 4 feet have been removed from its length, let's follow these steps:

1. Determine the original dimensions of the rectangle:
- The original length is 7 feet.
- The original width is 4 feet.

2. Remove 4 feet from the original length:
- Subtract 4 feet from the original length of 7 feet to obtain the new length: 7 feet - 4 feet = 3 feet.

3. Use the new length to determine the dimensions of the new rectangle:
- The new length is 3 feet.
- The width remains unchanged at 4 feet.

4. Calculate the area of the new rectangle:
- Use the formula for the area of a rectangle: Area = Length × Width.
- Apply the dimensions of the new rectangle to the formula: Area = 3 feet × 4 feet.

5. Compute the result:
- Area = 3 × 4 = 12 square feet.

Therefore, the area of the new rectangle, after 4 feet have been removed from its length, is 12 square feet.

Answer 2

The original length is 7 feet, so, subtract by 4 to find the new length.

7 - 4 = 3 feet

Now, find the area with the new length [ A = lw ]

A = 3*4

A = 12

Therefore, the area of the new triangle is 12ft².

Best of Luck!