Question

The perimeter of a rectangle is 230 cm. If the length of the rectangle is 70 cm, find its breadth and area

Answer 1

Answer:

P =230cm

P =230cmlength=70cm

P =230cmlength=70cmLet b=x

P =230cmlength=70cmLet b=x2(70+x)=230cm

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm2x=80cm

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm2x=80cmx=80/2cm

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm2x=80cmx=80/2cmx=40cm

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm2x=80cmx=80/2cmx=40cmbreadth=40cm

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm2x=80cmx=80/2cmx=40cmbreadth=40cmArea=length×breadth

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm2x=80cmx=80/2cmx=40cmbreadth=40cmArea=length×breadth=40×70

P =230cmlength=70cmLet b=x2(70+x)=230cm140×2x=230cm2x=230-140cm2x=80cmx=80/2cmx=40cmbreadth=40cmArea=length×breadth=40×70=2800cm²

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Answer 2

Step-by-step explanation:

perimeter=230

2*(l+b)=230

2*(70+b)=230

70+b=230/2

70+b=115

b=115-70

b=45

area of rectangle= l*b

70*45=3150

Breadth =45 and Area =3150

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