What is the length of the field?
Geometry
Level
1
The length of a rectangular field is 21 m longer than its breadth. If the area of the field is 196 square meters, then what is the length of the field(in meters)?
The answer is 28.
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1 solution
x(x+21)=196
x^2 +21x - 196=0
(x+28)(x-7)=0
x= {28.7}
the length = 28 m