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Area of Square

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Question

How many square metre of glass will be required for windows, Which has $10$ panes, each measuring $25 c m$ by $16 c m$ ?

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Solution

$\begin{matrix} A r e a o f g l a s s = a r e a o f 10 p a n e s = 10 \times \frac{25}{100} \times \frac{16}{100} m^{2} = 0.4 m^{2} \end{matrix}$

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