Question

a wire is in the form of a square of side 18 it is bent in the form of a rectangle whose length and breadth are in the ratio 3 : 1. the
area of rectangle is
​

Answer 1

Total length of wire = Perimeter of square=4×18=72m

Let the length, breadth of rectangle be 3x and x, respectively.

∴Perimeter of rectangle =2(3x+x)=72m

4x=36

x = 9

⇒Length=3×9=27m

Breadth = 9 m

Area of rectangle=27×9=243m2

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Answer 2

Answer:243 square units

Step-by-step explanation:

let the length be 3x and breadth be x

2 ( l+b)= 4a ( a= side of square)

2( 4x) = 4* 18

8x=72

x = 9

Length = 3x = 3*9 =27

Breadth = 9

Area = length *breadth

= 243 square units

Hope it helps !