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Area and perimeter

Wath is formula of a rectangle ?

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  • Anonymous Mar 19, 2014

    Using pi 3.14'and semi circles and rectangles how to find the perimeter

  • Anonymous Apr 01, 2014

    sum of two congruent side of a rectangle is 30 cm. if the area is 45 cm 2, what is the perimeter ?

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Area= width * length
Perimeter= 2 * width + 2* length

Are you looking for an Excel function?
There are no Area or Perimeter functions I am aware of in Excel.

Posted on Mar 04, 2008

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1 Answer

The length, l, of a rectangle is 5/2 its width, w. The length, l, of the rectangle is 10 inches. What is the perimeter of the rectangle? What Iis the area of the rectangle, in sauare inches?


We are given the following data:

length = 5/2 * width
length = 10 inWe know through the transitive

property of equality that the following must be true:

5/2 * width = 10 in

We then solve this equation algebraically for width:

width = (10 in) * 2/5
width = 4 in

The perimeter of the rectangle is given by substituting our known values of length and width into the following general equation:

Perimeter = 2 * length + 2 * width
Perimeter = 2(10 in) + 2(4 in) = 28 in

In a similar fashion, we substitute these known values into the general equation for the area of the rectangle to solve for the same:

Area = length * width
Area = (10 in)(4 in)=40 in^2

Nov 29, 2016 | The Computers & Internet

1 Answer

How do you find the dimensions of a rectangle with a perimeter of 26 inches and an area of 42 inches?


Area=width*length
Perimeter=2(l+w)

What combination of two numbers multiplied together equal equal 42? 1*42 / 2*21 / 3*14 / 4*13 / no 5 / 6*7

Add any two sets of numbers and multiply by 2 (l+w).

Very quickly you will see that numbers 6 & 7 are the answer.

It is not common core, but it works without deriving a complex algebraic formula.



Mar 02, 2015 | Computers & Internet

1 Answer

How many feet in a half acre of land?


Since acre is a measure of area and feet is a measure of distance, you need to calculate the perimeter of a lot with an area of half an acre. Here are the formulas:
1. If the lot is a square (all 4 sides of equal length), multiply the length of one side by 4, to get the # of feet required to walk a half acre piece of land.
2. If the lot is rectangle: (heightx2)+(widthx2).
3. If the lot is a triangle, add up all three sides.

Dec 09, 2014 | Visual Land Audio Players & Recorders

1 Answer

How do you figure the perimeter of a rectangle when l = 4 and w = 10angle formula perimeter


Add together the lengths of the four sides. Two sides are 4 each and the other two are 10 each, so the total perimeter is 28.

May 02, 2014 | Computers & Internet

1 Answer

What is the greatest perimeter that a 48 meter squared rectangle could have?


Infinite.

A one meter by 48 meter rectangle has an area of 48 square meters and a perimeter of 98 meters. A one centimeter by 4800 meter rectangle has the same area and a perimeter of 9600.02 meters. A one millimeter by 48,000 meter rectangle has the same area and a perimeter of 96,000.002 meters. A rectangle one micron by 48,000,000 meters has an area of 48 square meters and a perimeter of 96,000,000.000002 meters. Keep making the rectangle skinnier and skinnier without changing the area, and the perimeter keeps getting longer and longer.

May 01, 2014 | Computers & Internet

1 Answer

Perimeter of a rectangle


24 square centimeters.

If this is homework, be sure to show your work.

Jan 09, 2014 | Computers & Internet

1 Answer

Perimeter of a rectangle


1 tile by 20 tiles - perimeter of 1+ 20 +1 + 20 = 42
2 tiles by 10 tiles - perimeter of 2 + 10 + 2 + 10 = 24
(can't make a rectangle with 3 rows)
4 tiles by 5 tiles - perimeter of 4 + 5 + 4 + 5 = 18
5 tiles by 4 tiles - perimeter of 5 + 4 + 5 + 4 = 18
(can't make a rectangle with 6, 7, 8 or 9 rows)
10 tiles by 2 tiles - perimeter of 10 + 2 + 10 + 2 = 24
20 tiles by 1 tile - perimeter of 20 + 1 + 20 + 1 = 42

So 6 different rectangles. Smallest perimeter is 18.

Jan 08, 2014 | Computers & Internet

1 Answer

Please show all of the information and answers to: The plane was purchased new in 2006; therefore, x =0 represents the year 2006. X - Axis (horizontal) = years starting from 0 = 2006 and increasing b


Translate the English into Mathematics.
W=L-5 (in inches)
P=2(L+W)=2(L+L-5)=2(2L-5)
Use distirbutive property of multiplication with respect to addition to open up the parentheses (brackets)
P=4L-10.
Set P= 50 (inches), to get 4L-10=50
Solve for L: Do it'!
Find W= L (the one you just found) -5 =

Now, with W the value you just calculated
the new length is L'=-4+3W
and the new perimeter is P'=2(L'+W)

Now your turn to do some work.

Jan 02, 2012 | Office Equipment & Supplies

1 Answer

How do i find asquare metre of a area what key do i use


Your field, terrain, figure has a particular form. For each form you have a formula that tells you how to compute the area enclosed. Read your book or your notes to know what formula to use. I cannot give you a formula because I have no idea about the shape of the figure nor its dimensions.

Now, having the formula at hand you can use your calculator to calculate the area. But, in order to obtain consistent values you must convert all dimensions to the same unit length: m, cm, km, inches, feet or what have you.

For example: You have a rectangle with LENGTH L=3.5 m, and a width W=20 dm (decimeters), you must convert the value in decimeters to meters, 20 dm=2 m.
The area of you rectangle will be
Area=L*W=(3.5 m)*(2 m)=3.5*2 m*m= 7 m^2

Jul 23, 2010 | Casio FX-7400G Plus Calculator

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