Question

Area of rectangle is 221cm its length is 4m more than its breadth then what measures of breadth

Answer 1

Answer: 14.7309198627

Step-by-step explanation:

We know, Area of rectangle = width × breadth. As question,

x*x+4=221

or, x^2+4=221

or, x^2= 221-4

or, x= √(217)

or, x= 14.7309198627

Answer 2

Step-by-step explanation:

given

area of rectangle=221cm^2

let

length of rectangle=X+4

breadth of rectangle=X

now as per the question

we know that

$area \: of \: rectangle = length \times breadth$

=>X(X+4)=221

=>

${x }^{2} + 4x - 221 = 0 \\ {x}^{2} + 17x - 13x - 221 = 0 \\ x(x + 17) - 13( x+ 17) = 0 \\ ( x- 13)( x+ 17) = 0 \\ x - 13 = 0 \\ x = 13 \\ now \: put \: the \: value \: of \: x \: to \: find \: l \: and \: b \\ \\ so \: length = x + 4 = 13 + 4 = 17cm \\ and \: breadth = 13cm$

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