Rectangle - sides ratio

Calculate the area of a rectangle whose sides are in ratio 3:13 and perimeter is 673.

Correct answer:

S =  17250.2

Step-by-step explanation:

 a/b=3/13 a=0.231b  673=2(a+b) 673=2(0.231b+b) 673=2.462b b=273.41 a=0.231b=63.09  S=ab=63.09273.4117250.2

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