SOLUTION: A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 21 feet, express the area A of the window as a function of the width x (a

Question 1013807: A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 21 feet, express the area A of the window as a function of the width x (across the base) of the window.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
First find the perimeter of just
the semi-circular top of the window
( half of the perimeter of the circle )

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Now subtract this result from ft

This result is twice the length of the rectangle
plus the width.
Let = the length of the rectangle

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The area of the rectangular part is:

The area of the semi-circle is:

Hope I got it!
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