Dimensions 3531

The room has the shape of a rectangle measuring 6m and 5m, the children's room has dimensions of 5m and 4m, and the bedroom has the shape of a square measuring 4m. How many m² of floating floors do they need in all rooms?

Correct answer:

A =  66 m²

Step-by-step explanation:

$$\begin{gathered} a=6\text{m} \\ b=5\text{m} \\ x=5\text{m} \\ y=4\text{m} \\ z=4\text{m} \\ {A}_1=a\cdot b=6\cdot 5=30{\text{m}}^2 \\ {A}_2=x\cdot y=5\cdot 4=20{\text{m}}^2 \\ {A}_3=z^2=4^2=16{\text{m}}^2 \\ A=A_1+A_2+A_3=30+20+16=66{\text{m}}^2 \end{gathered}$$

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