Question

the length of a rectangle is 12m more than the breadth .if the perimeter is 240 m . find the length and the breadth​

Answer 1

Step-by-step explanation:

let the breadth be x cm

length=x+12cm

• perimeter =2(l+b)
• =2(x+x+12)
• =2(2x+12)
• 240 =4x+24
• 4x=216
• x=216/4
• x=54cm
• therefore length=66cm
• breadth=54cm
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Answer 2

Answer: L = 66m

              B = 54m

Step-by-step explanation:

let breadth be x

then length = 12 + x

perimeter = 2(l+b)

240 = 2(12 + x + x)

240 = 24 + 4x

240 - 24 = 4x

216 = 4x

x = 54m = breadth

l = 12 +x = 12 + 54 = 66m