Rectangle

The width of the rectangle is 65% of its length. Perimeter of the rectangle is 132 cm. Determine the dimensions of the rectangle.

Correct answer:

a =  26 cm
b =  40 cm

Step-by-step explanation:

$$\begin{gathered} k=65\mathrm{\%}={\displaystyle \frac{65}{100}}=0.65 \\ o=132\text{ cm } \\ a=k\cdot b \\ 2(a+b)=o \\ a=0.65\cdot b \\ 2(a+b)=132 \\ a=0.65\cdot b \\ 2\cdot (a+b)=132 \\ a-0.65b=0 \\ 2a+2b=132 \\ a=26=26\text{ cm } \\ b=40 \end{gathered}$$

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