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.

Answer 1

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.

Answer 2

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

Answer 3

oh, sure - read the topic carefully.

show-off.

Answer 4

length 14 cm breadth 10 cm

Answer 5

good answer

Answer 6

Bhut ghatiyaa

Answer 7

Very very very very very very very much bad

Answer 8

Very nice good answer

Answer 9

ugh what a bad answer

Answer 10

Good answer ..TQ👍

Answer 11

Your answer is correct ❤

Answer 12

Hmm sahi hai