Answer :
Answer:
[tex]A=2513.27\ cm^2[/tex]
Step-by-step explanation:
The radius of semicircle window, r = 40 cm
The area of semicircle is given by :
[tex]A=\dfrac{\pi r^2}{2}[/tex]
Substitute all the values in the above formula.
[tex]A=\dfrac{\pi \times 40^2}{2}\\\\A=2513.27\ cm^2[/tex]
So, the area of the window is equal to [tex]2513.27\ cm^2[/tex].