# Rectangle - sides ratio

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

Result

S =  17250.2

#### Solution:

$\ \\ a/b = 3/13 \ \\ a = 0.231 \cdot b \ \\ \ \\ 673 = 2(a+b) \ \\ 673 = 2(0.231 b + b) \ \\ 673 = 2.462 \cdot b \ \\ b = 273.41 \ \\ a = 0.231 \cdot b = 63.09 \ \\ \ \\ S = a \cdot b = 63.09 \cdot 273.41 \doteq 17250.2$ Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

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