Name: Erin
Who is asking: Other Level: Secondary
Question:
A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 30 ft, express the atrea, A, as a function of the width x of the window.
Draw a diagram.
Write the radius of the circle, r, in terms of x.
The perimeter is x 30 ft, hence,
x + 2h + (half the circumference of a circle of radius r) = 30 ft.
Solve this equation for y.
The area of the window is
Penny