Rectangular floor of living room has a length 5.4 meters and a circumference 17.2 meters. What is its width?

Correct answer:

b =  3.2 m

Step-by-step explanation:

o=17.2 m a=5.4 m  o=2(a+b)  b=o/2a=17.2/25.4=3.2 m

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