Asked by Anonymous

the length of a rectangle exceeds its breadth by 4 cm. if length and breadth are each increased by 3 cm, the area of the new rectangle will be 81 cm sqsq morthan that of the given rectangle. find the length and breadth of the given rectangle.
Answered by Steve
If the width is x and the length y, then

y = x+4
(x+3)(y+3) = xy+81

Now just solve for x and y. If you expand the 2nd equation, you will see the xy drop out, leaving you with two linear equations in x and y.
Answered by Reiny
or - using one variable, as your title suggests

width --- x
length --- x+4

new width = x+3
new length = x+7

(x+3)(x+7) - x(x+4) = 81
x^2 + 10x + 21 - x^2 - 4x = 81
6x = 60

etc
Answered by Steve
oh, sure - read the topic carefully.

show-off.
Answered by suraj
length 14 cm breadth 10 cm
Answered by mohithsarma
good answer
Answered by Zoya
Bhut ghatiyaa
Answered by Aakash
Very very very very very very very much bad
Answered by RASHER
Very nice good answer
Answered by sar
ugh what a bad answer
Answered by Shreya
Good answer ..TQ👍
Answered by Sanjana
Your answer is correct ❤
Answered by Purav
Hmm sahi hai