Rectangular 82001

In a rectangular room with dimensions of 3.5 m and 4 m, a square carpet with a side of 3 m is laid on the floor. How many m² of the floor is not covered by carpet?

Correct answer:

x =  5 m²

Step-by-step explanation:

$$\begin{gathered} a=3.5\text{m} \\ b=4\text{m} \\ c=3\text{m} \\ {S}_1=a\cdot b=3.5\cdot 4=14{\text{m}}^2 \\ {S}_2=c\cdot c=3\cdot 3=9{\text{m}}^2 \\ x=S_1-S_2=14-9=5{\text{m}}^2 \end{gathered}$$

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