Math, asked by Amayratuli12, 2 months ago

Find the perimeter of a rectangle whose length is ( 5a – b ) units and breath is 2 ( a + b ) units.​

Answers

Answered by ExploringMathematics
1

\textrm{Perimeter of Rectangle = 2 $\times$ [Length + Breadth]}

\longrightarrow\textrm{Perimeter of Rectangle = 2 $\times$ [(5a - b) + 2(a + b)]}

\longrightarrow\textrm{Perimeter of Rectangle = 2 $\times$ [5a - b + 2a + 2b]}

\longrightarrow\textrm{Perimeter of Rectangle = 2 $\times$ [5a + 2a - b + 2b]}

\longrightarrow\textrm{Perimeter of Rectangle = 2 $\times$ [7a + b] = 14a + 2b}

Answered by Flaunt
13

Given

we have given length of Rectangle is (5a-b) units and breadth of Rectangle is 2(a+b) units.

To find

we have to find the perimeter of Rectangle

\sf\huge\bold{\underline{\underline{{Solution}}}}

Step by step explanation:

  1. First write down the formula of perimeter of Rectangle.
  2. Put the given dimensions into the formula
  3. Evaluate it.
  4. Final answer

Perimeter of Rectangle= 2(length+ breadth)

Length = (5a-b) units and breadth= 2(a+b) units

Put the values into formula

=>perimeter of Rectangle=2[ (5a-b)+2(a+b)]

=>Perimeter of Rectangle= 2[5a-b+2a+2b]

=>Perimeter of Rectangle= 2[ 5a+2a-b+2b]

=>Perimeter of Rectangle=2( 7a+b)

=>Perimeter of Rectangle=\bold{\red{( 14+2b )\:units}}

Extra information=>

Perimeter is the total distance occupy by a solid 2D figure around its edge.

Area of Rectangle= length× breadth

Rectangle

  • A rectangle is a type of quadrilateral.
  • Opposite sides are parallel & equal
  • Sum of all Interior angles makes 360°
  • Diagonals bisects each other and both diagonals are of same length.
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