Question

the length of rectangle is increased by 25% while breadth is diminished by 30.what is impact on area?​

Answer 1

Answer:

Therefore, Area = lb. Clearly there is a decrease in area. Hence, there is a decrease in the area by 12.5%. Hope this answer helps you.

Answer 2

Answer:

Let length of rectangle be l .

And breadth of rectangle be b.

Therefore , area = l × b

New length = l + 25/100 × l

= 5 l/4

New breadth = b - 30/100 × b

= 7b/10

Hence , new area = 5l/4 × 7b/10

= 7lb/8

Clearly there is decrease in area.

Decrease = lb - 7lb/8

= lb/8

So decrease % = (lb/8×i/lb×100)%

= 25/2 %

= 12.5 %

Hence there is decrease in area by 12.5 %

Mark me as brainliest.....