The length of the rectangle is 12 ft. What is the perimeter if the width is 42 inches?

as always, 2 times (length+width) = 24 ft + 84 in.

To find the perimeter of a rectangle, we need to add up the lengths of all four sides.

First, let's convert the width of the rectangle from inches to feet to match the unit of the length.

Since 1 foot is equal to 12 inches, we can convert the width of 42 inches to feet by dividing it by 12.

42 inches / 12 inches/foot = 3.5 feet

Now that we have both the length and the width in feet, we can calculate the perimeter.

The formula for the perimeter of a rectangle is:

Perimeter = 2 * (Length + Width)

Given that the length is 12 feet and the width is 3.5 feet, we can substitute these values into the formula:

Perimeter = 2 * (12 ft + 3.5 ft)

Performing the calculation:

Perimeter = 2 * (15.5 ft)

Perimeter = 31 ft

Therefore, the perimeter of the rectangle is 31 feet.

To find the perimeter of a rectangle, you need to add up all four sides. However, since the length is given in feet and the width is given in inches, we need to convert the units to be consistent.

First, let's convert the width from inches to feet:
1 foot = 12 inches
So, the width in feet is 42/12 = 3.5 ft.

Now that both measurements are in the same unit (feet), we can calculate the perimeter.

The perimeter formula for a rectangle is:
Perimeter = 2 × (length + width)

Given that the length is 12 ft and the width is 3.5 ft, we can substitute these values into the formula:

Perimeter = 2 × (12 ft + 3.5 ft)

Performing the calculation gives us:
Perimeter = 2 × 15.5 ft

Now, we can compute the perimeter:
Perimeter = 31 ft

Therefore, the perimeter of the rectangle is 31 ft.