# Painting

To paint the pool with dimensions: 2 meters depth, 3m x 4m we bought paint to 50 meters square. How many "paint" will be a waste?

Result

x =  10 m2

#### Solution:

$S_{1}=50 \ \\ S_{2}=3 \cdot \ 4 + 2 \cdot \ (3+4) \cdot \ 2=40 \ \\ x=S_{1}-S_{2}=50-40=10 \ \text{m}^2$

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