Circumference 9211

The rectangle has a circumference of 30 cm, and its width is 3 cm shorter than its length. What is its area?

Correct answer:

a =  6 cm
b =  9 cm
S =  54 cm2

Step-by-step explanation:


a=b-3
2(a+b)=30

a=b-3
2•(a+b)=30

a-b = -3
2a+2b = 30

a = 6
b = 9

Our linear equations calculator calculates it.
S=a b=6 9=54 cm2



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