Math and Arithmetic
Algebra
Geometry

# What is an expression for the perimeter of a rectangle that has a length which is seven times its width?

567 ###### 2010-03-18 03:16:10

Perimeter = length + length + width + width

Let "w" = width, then "7w" must equal the length (because it's 7 times the width)

7w + 7w + w + w = perimeter

16w = perimeter

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## Related Questions A heptagon is a shape that has seven sides of equal length. The perimeter of a heptagon can be found by multiplying the length of one side by seven. * * * * * No! The perimeter is the sum of the lengths of the seven sides. There is absolutely no requirement for the seven sides to be of equal length! If the width is seven on both sides and the length is seven on both sides then the perimeter is 7+7+7+7 = 28. Seven 9 inch squares placed end to end would form a rectangle that was still 9 inches wide but 7 x 9 = 63 inches long. The distance around such a rectangle would measure its perimeter. Two sides are 9 inches long and two sides are 63 inches long. The perimeter would be 63 + 63 + 9 + 9 = 144 inches. You add the lengths of all the sides. If the sides happen to be of equal length, you multiply this length by 7.  Each side can have any length in the range (0, 12.9) units. The only restriction is that the sum of the seven sides must be 12.9 units.  A square with an area of seven acres has the following dimensions:Each side is 552.2 feet longThe perimeter length is 2,209 feetThe diagonal length is 780.9 feetThe total area is 304,920 square feet the perimeter of a triangle is 86 inches. the largest side is four inches less than twice the smallest side. the third side is 10 inches longer than the smallest side. what is the length of each side? Think about it. The rectangle has four sides, two of which are seven meters, two of which are eight. You would simply do 7X2, or fourteen, and add that to 8X2, or sixteen, so you would get 30. By the way, stop using wiki-answers for your homework and do the math yourself.Anyways, hope this helped :D A rectangle is a geometric shape having four sides and four right angles. Here are some sentences.A football field is a rectangle.The rectangle measured three inches by seven inches.A square is a type of rectangle with equal sides.   The numerical result of decreasing ten by seven is three.  An area of 7 acres does not specify its shape. It can be a circular, square or in the form of an extremely long and thin strip. The first has the minimum perimeter, the latter can have an infinite perimeter.  In the Roman Catholic Church there are seven cardinal sins, or seven deadly sins, that contrast the seven cardinal virtues. When someone uses the expression committing the cardinal sin, they are talking about the ultimate sin of Pride.   Have you heard the expression "a pound of flesh" as payback for something? His character wronged seven people and he pays back seven pounds of flesh. 7 X 7 X 7 equals "seven to the third power" or "seven cubed".   A heptagon is a polygon with seven sides. A regular heptagon has seven sides of equal length and seven angles of equal magnitude.

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