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Perimeter of a rectangle

What is the height of a rectangle with perimeter 132.8 mm and base length 60.2 mm?

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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 many gallons in an 88" x 15" x 9" trough?

try this :

  1. Measure the rectangle length, width and height. For example, 8 inches long, 6 inches wide, 10 inches high.
  2. Multiply the length by the height, then double the product. With this example, 8 inches multiplied by 10 inches results in 80 square inches, which multiplied by 2 equals 160 square inches.
  3. Multiply the width by the length, then double the product. With this example, 6 inches multiplied by 8 inches equals 48 square inches, which multiplied by 2 equals 96 square inches.
  4. Multiply the height by the width, then double the product. With this example, 10 inches multiplied by 6 inches results in 60 square inches, which multiplied by 2 equals 120 square inches.
  5. Sum the amounts from Steps 1 through 3 to find the rectangle surface area. So adding 160, 96 and 120 square inches results in 376 square inches.

1 Us gallon is 231 cubic inches

Sep 05, 2015 | Garden

1 Answer

What is the perimeter of a 1 x 3 rectangle?

Rectangle has two pairs of equal sides.
L=length=3 units
w=width =1 unit
Perimeter = sum of the measures of all sides.
2 sides with measure L: sum of lengths=2*L
2 sides with measure w: sum of widths=2*w
Perimeter = 2L+2w=2(L+w)=2(1+3)=8 units.

Oct 29, 2013 | Mathsoft StudyWorks! Mathematics Deluxe...

1 Answer

Perimeter of a 1 x 3 rectangle

Rectangle has two pairs of equal sides.
L=length=3 units
w=width =1 unit
Perimeter = sum of the measures of all sides.
2 sides with measure L: sum of lengths=2*L
2 sides with measure w: sum of widths=2*w
Perimeter = 2L+2w=2(L+w)=2(1+3)=8 units.

Oct 29, 2013 | Computers & Internet

2 Answers

How do you solve a rectangle is eight inches longer than its width. find the dimensions of the rectangle if the perimeter is 60 cm

The rectangle is 11cm by 19cm.

The perimeter is 60, so the width and length must add to 30. The length is 8 more than the width, or width+width+8=30. Solve that for width, then you can calculate the length based on the width.

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

Oct 11, 2013 | Lands Phones

1 Answer


A hexagonal based prism has a lateral area that is made up of 6 rectangular faces. If the hexagon at the base is regular, all the lateral rectangles are congruent (identical).
To calculate the lateral area of one of the rectangular faces you need to multiply the length of a side (s) of the regular hexagon by the height (h).
For the lateral area of the prism use A_l=6*s*h=P_b*h, where P_b is the perimeter of the base.
Sorry I cannot proceed further, because "using the area and the height?" is not clear enough for me.

May 22, 2013 | Computers & Internet

1 Answer

What is the surface area for 9in,4in,6in

The total area of the prism is made up of the areas of the two bases plus the lateral area.
Atotal =2 A_base +P_base*height. Here A_b is the area pf a base, and P_b is the perimeter of the base.
If you take the base to be a rectangle with length L=9in, and width W=4 in, then height= 6 in.
With this choice A_b=9*4=36 sq. in
P_b=2*(9+4)=26 in.
Now I leave the rest to you.
Understand this calculation and apply it to the other similar questions you posted.

Mar 05, 2013 | 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)
Use distirbutive property of multiplication with respect to addition to open up the parentheses (brackets)
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

Area of traingle with tree side

All triangles have three sides.
There are two main formulas that do not call on trigonometric ratios.
The classic one:
  • 1. You need the length of a base and it corresponding height (the length of the segment perpendicular to that base and passing through the vertex (summit) opposite to that base. Area=(1/2) * (measure of the base)*(measure of the height). The base and height must be expressed in the same unit.
Heron's Formula if you have the length of the three sides. Let those measures be a, b, and c.
  • Calculate the semi-perimeter p with p=(1/2)(a+b+c)
  • Area=Square root of (p*(p-a)*(p-b)*(p-c))
  • a, b, and c must be expressed in the same unit.

May 21, 2011 | Casio FX82ES Scientific Calculator

1 Answer

A rectan Dear Madam Please look at the math questions below. Please help me solve the questions Question 1 : A rectangular tablecloth is 2.5 m long. Trim is to be sewn around the perimeter of the cloth...

1. Well this one is pretty simple. Since you are not supposed to trim the length trim the width instead.
to make the perimeter 0.4 m shorter cut the cloth by 0.2 m width the picture will make it clear.

2. let the length of rectangle be x cm
and breadth = 20 cm
now original perimeter = 2(x+20) cm

new length = x-30 cm
breadth remains same = 20 cm
new perimeter = 2(x-30+20) cm = 2(x-10) cm

According to question

new perimeter = old perimeter /2
2(x-10) = 2(x+20) /2
2x -20 = x + 20
x = 40 cm

hence length of longer side 40 cm.

If you want to directly comm

Feb 13, 2011 | Vivendi Excel@ Mathematics Study Skills...

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