Question

The are of a rectangular plot is 400 m square the length of a plot is twice its breadth find the length and breadth

Answer 1

Answer:

let the bredth be x

and the length will be 2x

here

according to the question

x×2x=400 m²

=>2x²=400m²

=>x²=200m²

=>x=√200m

so x= √200

so the length is 2√200m

and the bredth is √200m

Step-by-step explanation:

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Answer 2

Answer:

given-

area= 400 m sq.

_______________________

to find-

length

breath

_________________________

solution-

let length be l cm and breath be b cm.

lenght= 2 x breath

area= lenght x breath

area = 2b x b

400= 2b^2

b^2= 200

b= √200

b= 10√2 cm

lenght= 2 x 10√2= 20 cm