To find the area of a rectangle, you multiply the length by the width. In this case, the length is 21 feet and the width is 17 feet. Therefore, the area of the floor is 357 square feet (21 feet x 17 feet = 357 square feet).
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21 feet by 21 feet is a square having an area of 441 square feet.
To compare 21 feet and 17 yards, we need to convert them to the same unit. Since 1 yard equals 3 feet, 17 yards is equivalent to 51 feet (17 x 3 = 51). Therefore, 21 feet is less than 17 yards, making 17 yards greater.
21*21 = 441 square feet.
588Square feet is area, and area of a rectangle = LWtherefore, A=28x21A=588
Area = Length * Width 21 * 40 = 840 Square Feet