The length of a rectangle is 4m less than two times width. if perimeter of the rectangle is 100 m, find its dimensions
Answers
Answered by
4
Width / breadth= x
Length = 2x - 4
Perimeter = 2(l+b)
100m = 2 ( x + 2x-4 )
100/2= x+ 2x - 4
50 = 3x - 4
50 + 4 = 3x
54 = 3x
54 / 3 = x
18 = x
Therefore, breadth of rectangle = 18m
Length of rectangle = 32m
Length = 2x - 4
Perimeter = 2(l+b)
100m = 2 ( x + 2x-4 )
100/2= x+ 2x - 4
50 = 3x - 4
50 + 4 = 3x
54 = 3x
54 / 3 = x
18 = x
Therefore, breadth of rectangle = 18m
Length of rectangle = 32m
Answered by
1
Answer:
Length 32 and breath 18
Step-by-step explanation:
let the breath be x
therefore breath=x so length =2x-4
perimeter of rectangle =2×(length+breath)
2×(2x-4+x) = 100
so first we will send 2to R.H.S. =
100/2 = 50
the 4 will send to this the 50+4 =54
Similar questions