Ratio - rectangle

The rectangle has dimensions of 6 cm and 9 cm. When its dimensions increase in the ratio of 5:3, how many times does the area and perimeter increase?

Final Answer:

k₁ =  2.78
k₂ =  1.67

Step-by-step explanation:

$$\begin{gathered} r=5:3\doteq 1.6667=5:3 \\ {k}_1=S_2:S_1=r^2 \\ {k}_1=r^2=1.6667^2=2.78 \end{gathered}$$

$$\begin{gathered} k_2=o_2/o_1=r \\ {k}_2=r=1.6667=1.67 \end{gathered}$$

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