The length of a rectangle exeeds the
breadth by 6
cm, if the length is increased
by 3 cm and breadth decreased by 2 cm the
area romeets the same find the lenght & booth
Answers
Answered by
0
Length = x Cm
Breadth = x-6 cm
(X+3)(x- 8)= x(x-6)
X^2-5x-24= x^2-6x
-5x-24 = -6x
X=24
So length = 24cm and breadth = 18 cm
Breadth = x-6 cm
(X+3)(x- 8)= x(x-6)
X^2-5x-24= x^2-6x
-5x-24 = -6x
X=24
So length = 24cm and breadth = 18 cm
Answered by
0
Step-by-step explanation:
let the original breadth be x
original length=x+6
area=x×(x+6)
modified length=(x+6)+3
modified breadth=x-2
area=(x+6) +3×x-2=x+9×x-2
area of both rectangles is equal
therefore, x(x+6) = (x+9) (x-2)
=x²+6x=x²-2x+9x-18
=x²+6x=x²+7x-18
=x²-x²+6x-7x=-18
=-x=-18
=x=18
original breadth=x=18
original length=x+6=18+6=24
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