SOLUTION: a backyard is a rectangle with a perimeter of 0.07km.if the lengh is 7m more than the bredth, what is the area?
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Question 351094: a backyard is a rectangle with a perimeter of 0.07km.if the lengh is 7m more than the bredth, what is the area?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
perimeter = 0.07 km = 0.07*1000 = 70 m
..
let width be x
length = x+7
...
Perimeter = 2(L+W)
2(x+x+7)=70
2(2x+7)=70
4x+14=70
4x=70-14
4x=56
x= 14
width = 14
length =21
Area = 14*21= 294sq. m
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