Question

find the length of the rectangular field whose perimeter is 90 metres and breath is 20 metres​

Answer 1

Answer:

Step-by-step explanation:

Let Length = l

Breadth = 20 m

Perimeter of a rectangle = 2(l+b)

90 = 2(l+20)

45 = l+20

I = 25 m

Length is 25m

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Answer 2

Answer:

Given- Rectangular field whose

Breadth= 20 m

Perimeter= 90 m

Length=???

We know that

Perimeter of Rectangle= 2(l + b)

90 = 2(l + 20)

90/2 = l + 20

45 = l+ 20

45-20= l

So, l = 25m

Hence, The length of the rectangular field is 25m (ans)