If the length of a rectangle in 5 units more than its breadth, and its area is 85cm². Find its length and breadth.
Answers
Answered by
1
let breadth be x units
then length will be x+5 units
we know that area of rectangle is
= l×b
x × (x+5) = 85
x^2 + 5x -85 = 0
then it can be solved
then length will be x+5 units
we know that area of rectangle is
= l×b
x × (x+5) = 85
x^2 + 5x -85 = 0
then it can be solved
unknown1692:
by discriminant??
Answered by
1
as area of rectangle = length × breadth
85= b(b+5)....as l=b+5
b²+ 5b -85= 0
85= b(b+5)....as l=b+5
b²+ 5b -85= 0
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