The length of a rectangular lots is 4 meters longer than width. if the area of the lot is 12 m², what are it's dimension?
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Answers
Answered by
4
Answer:
width=2 m and length=6m
Step-by-step explanation:
let the width of the rectangle be x
then length is equal to 4+x
area is equal to l×b
12=(4+x)x
4x+x*2 =12
x*2 +4x -12 =0
x*2 +6x-2x-12=0
x(x+6)-2(x+6)=0
(x-2)(x+6)=0
x= -6 (rejected)
x=2
therefore, width=2m
length=4+2 = 6m
Answered by
1
Answer:
Answer:
width=2 m and length=6m
Step-by-step explanation:
let the width of the rectangle be x
then length is equal to 4+x
area is equal to l×b
12=(4+x)x
4x+x*2 =12
x*2 +4x -12 =0
x*2 +6x-2x-12=0
x(x+6)-2(x+6)=0
(x-2)(x+6)=0
x= -6 (rejected)
x=2
therefore, width=2m
length=4+2 = 6m
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