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kati45 [8]
2 years ago
14

Find the width of a rectangle 25 feet and the perimeter is 80​

Mathematics
2 answers:
Thepotemich [5.8K]2 years ago
5 0

The width of rectangle = 15 feet .

Step-by-step explanation:

<h2>Given = </h2>
  • Perimeter of rectangle = 80
  • Length of rectangle = 25 feet
<h2>To Find = </h2>
  • width or Breadth of rectangle.

As we know ,

Perimeter of rectangle = 2× (L + B )

  • where L is Length and B is width or Breadth.

Filling values in the formula :-

=> 80 = 2 ( 25 + B )

  • we don't know the value of ' B' so we put ' B' as it is .

=> 80/2 = 25 + B

=> 40 = 25 + B

  • when we combine like terms one side signs will be changed from + to - .

=> B = 40 - 25

=> B = 15 feet .

<h2>________________</h2>

Properties of rectangle :

  1. It is a quadrilateral
  2. each angle is 90° .
  3. sum of angles is 360°
  4. Opposite sides are equal.
  5. Diagonals bisect each other.

Perimeter of rectangle = 2× L+B

Area = L×B .

lukranit [14]2 years ago
3 0

\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}

  • Given - <u>a </u><u>rectangle </u><u>with </u><u>length</u><u> </u><u>2</u><u>5</u><u> </u><u>feet </u><u>and </u><u>perimeter </u><u>8</u><u>0</u><u> </u><u>feet</u>

  • To calculate - <u>width </u><u>of </u><u>the </u><u>rectangle</u>

We know that ,

\bold{Perimeter \: of \: rectangle = 2(l + b)} \\

where <u>b </u><u>=</u><u> </u><u>width </u><u>/</u><u> </u><u>breadth</u> of rectangle

‎ ‎ ‎

<u>substituting</u><u> </u><u>the </u><u>values </u><u>in </u><u>the </u><u>formula </u><u>stated </u><u>above </u><u>,</u>

\bold{80  = 2(25 + b)} \\  \\\bold{ \implies \: 25 + b = \cancel \frac{80}{2} } \\  \\ \bold{\implies \: 25 + b = 40 }\\  \\ \bold{\implies \: b = 40 - 25 }\\  \\\bold{ \implies \: b = 15 \: feet}

hope helpful ~

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