Question

length is increased 40% breath is decreased 40% find the percent of increased/decreased in area and perimeter​

Answer 1

Step-by-step explanation:

let length be 1000

breadth be 100

so perimeter is 2*(100+ 1000)= 2200

on changing parameters,

new length is 1400

new breadth is 60

new perimeter is 2*(1400+60)= 2920

so change is

decreased In area 2920- 2200= 720

decreased in perimeter 720/2200*100= 32.72%

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