Question

length of rectangle is 8m less than twice its breath.If the perimeter of the rectangle is 56m, find its length and breath​

Answer 1

Step-by-step explanation:

let the breadth(b) be xm.now length(l) will be 2x-8m.

Perimeter =56m

2(l+b)=56

2{(2x-8)+x}=56

2(3x-8)=56

6x-16=56

6x=56+16

6x=72

x=72/6

x=12m

length=2x-8=24-8=16m

breadth=x=12m

Answer 2

Answer:

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Let the breadth of the rectangle be x m. Then,

length of the rectangle =(2x−8) m

Given, perimeter =56 m

⟹2(2x−8+x)=56

⟹2(3x−8)=56

⟹6x−16=56

⟹6x=56+16[Transposing−16toRHS]

⟹6x=72

⟹x=12

Therefore, breadth of the rectangle =12 m and length of the rectangle =2×12−8=16 m.