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Sagot :
Answer:
80cm
Step-by-step explanation:
120+120=240
400-240=160
160 divided by 2=80cm
EXPLANATION:
Perimeter=2(l+b)
400=2(120+b)
400=240+2b
2b=400-240
b=160/2
b=80
ANSWER: Width=80cm
Perimeter=2(l+b)
400=2(120+b)
400=240+2b
2b=400-240
b=160/2
b=80
ANSWER: Width=80cm
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