Length ?
Breath?
Perimeter : 40cm
Area z 100sq.cm
Answers
Answered by
1
Answer:
L = 10 B=10
Step-by-step explanation:
l×b = 100 area of rectangle (-1)
2(l+b) = 40 perimeter of rectangle
l+b=20
l=20-b (-2)
substitute 2 in 1
(20-b)×b =100
20b-b²=100
b²-20b+100 =0
b(b-10) -10(b-10) =0
b=10 (3)
substitute 3 in 2
l=20-b
l=20-10
l=10
Answered by
1
Answer:
Length and breadth will be 10 cm
Perimeter= 2(l+b)
If we put values the answer is 40cm
Area=10*10=20cm²
Hope it helps
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