If the sum of length and breadth is 8m and the area is 15m² . Find the length of rectangle?
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Step-by-step explanation:
Acc to the question:
Length + Breadth = 8m
Length × Breadth = 15m²
L+B = 8 (1)
LB = 15 (2)
L = 8-B
Putting in (2)
(8-B)B = 15
B²-8B +15 = 0
B²-3B-5B + 15 = 0
B = 3 or 5
Therefore Breadth = 3m
Length = 5m
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