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19. Ricardo needs to pave the two rectangular sectons shown. Detumng the total area that Ricardo needs to pave.

1 Answer

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we need to sum the two areas

First Area

Area of the rectangle is


A=b* h
\begin{gathered} (2)/(5)*(9)/(10) \\ \\ (18)/(50)=(9)/(25) \end{gathered}

Second Area


A=b* h
\begin{gathered} (3)/(5)*(3)/(5) \\ \\ =(9)/(25) \end{gathered}

Sum the areas


\begin{gathered} (9)/(25)+(9)/(25) \\ \\ (9+9)/(25)=(18)/(25) \end{gathered}

the total area is 18/25 square meter

User Christoph Wurm
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