To determine how much wood you need for a rectangular frame measuring 10 inches by 11 inches, you first need to calculate the perimeter of the rectangle. The formula for the perimeter (P) of a rectangle is:
P = 2 x (length + width)
In this case, the length is 11 inches and the width is 10 inches. Plugging in the numbers:
P = 2 x (11 inches + 10 inches)
P = 2 x 21 inches
P = 42 inches
Now that we know the perimeter is 42 inches, we can convert this measurement into feet. Since there are 12 inches in a foot, you can convert inches to feet by dividing the total inches by 12:
Wood needed in feet = 42 inches ÷ 12
Wood needed in feet = 3.5 feet
Therefore, to build a rectangular frame that measures 10 inches by 11 inches, you will need a total of 3.5 feet of wood.