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(A) The perimeter of a rectangle is 20m. Its breadth is 2 m. less than its
length. Find its length and breadth.
Answers
Answered by
3
Step-by-step explanation:
p=20 m
let x be value of length in metres
l = x
b = x-2
p = 2(l+b) -------(1)
putting values of l and b in (1)
p=2(x+x-2)
p=2(2x-2)
20m=2(2x-2)
10m=2x-2
2x= 10+2
x=12/2
x=6
l= 6 m
b=x-2=4m
hope you find it helpful !!
pls mark brainliest
Answered by
2
ANSWER--
Length= 6, breadth= 4
Calculations
Perimeter of triangle= 20 cm
Let's take length= x
Breadth= x-2
Perimeter of rectangle= 2(l+b)
2(x+{x-2})=20
x+(x-2)=20/2
x+(x-2)=10
2x-2=10
2x=12(10+2)
x=12/2
x= 6
Length= 6
breadth= length - 2, 4
ANSWER- Length= 6, breadth= 4
if we check 12+8=20, it is correct
I hope it helps
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