The perimeter of the window is 3.93 feet.
Perimeter is the total length of the sides of a two-dimensional shape.
perimeter = πr
Where, r is the radius of the circle
And, π = 3.14
According to the given question.
The window is in the shape of semicircle.
Radius of the window = [tex]\frac{2.5}{2} = 1.25 feet[/tex]
Therefore, the perimeter of the window
= π × 1.25 ft
= 3.14 × 1.25
= 3.925
= 3.93 feet
Hence, the perimeter of the window is 3.93 feet.
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