perimeter of rectangle = 200 cm B = 40 cm L= ?
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3
Answer:
L = 60
Step-by-step explanation:
Perimeter of rectangle= 2(l+b)
200 = 2(L + 40)
200 = 2L + 80
200 - 80 = 2L
2L = 120
L = 120/2
L = 60
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