The area of the rug is 36 1/4 square feet the rug is 8 3/4. what is the length of the rug?

Area of a rectangle(A) is multiply the length by its width.

i.e where l is the length and w is the width of the rectangle respectively

As per the given statement:

The area of the rug is 36 1/4 square feet the rug is 8 3/4.

⇒ square feet.

and

width of a rug(w) = feet.

By definition of area;

Substitute the given values we get;

Divide both sides by 8.75 we get;

l=4.14285714 feet

Therefore, the length of the rug  is, 4.14285714 feet

it would open into a square depending on the type of envelope i’m not sure about the second part

other answer is correct. i had used the radius of the radius somehow. a website: