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3. A carpenter is framing a window with wood trim where the length of the window is 6 and 2\3 feet. If the width of the window is 7 and3\4 feet, how many feet of the wood is needed to frame the window?

Respuesta :

We can see that window is in shape of rectangle. So the length of the required wood to frame window is equal to the perimeter of rectangle.

SO the length of rectangular window is [tex]= 6 \frac{2}{3} = \frac{20}{3} [/tex] feet.

Width of the rectangular window is = [tex]7 \frac{3}{4} = \frac{31}{4} [/tex] feet.

In general parameter of rectangle is = [tex]2(l+b)[/tex]

So the parameter of window is = [tex]2( \frac{20}{3} + \frac{31}{4}) = 2* \frac{(80+ 93)}{12} = 2* \frac{173}{12} = 28.834 [/tex]

So the required length of wood to frame window is = 28.834 feet

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