Question

length of rectangle is 8cm more than its breadth.if area of rectangle is 240cm^2 then find its length and breadth​

Answer 1

Answer:

LENGTH = 58+8= 66 CM

BREADTH = 58 CM

Step-by-step explanation:

LET BREADTH = X

SO , LENGTH = X+8

ATQ-------

2(L+B) = 240

2(X+8+X) = 240

2(2X + 8 ) = 240

4X + 8 = 240

4X = 232

X = 58

HOPE IT HELPS YOU!!!!!!

PLS MARK BRAINLIEST

Answer 2

Answer:

length =20cm

breadth=12cm

Step-by-step explanation:

$let length(l) be =x+8\\let breadth(b)be= x\\area = 240cm^{2} \\area. of .rectangle= lb\\240=(x+8) (x)\\240=x^{2} +8x\\=x^{2} +8x-240\\=x^{2} +20x-12x-240\\=(x^{2} +20x) -(12x-240)\\=x(x+20)-(12x+240)\\=x(x+20)-12(x+20)\\=(x+20)(x-12)\\x=-20(not possible ) , x=12\\length=x+8=12+8\\length =20 cm\\breadth= 12cm$