Answer:
The correct answer is 43.44 inches.
Step-by-step explanation:
The diagonal of square = 9 inches
let the sides of the square be x
On applying Pythagoras theorem in Δ ABC
\(AB^2+BC^2=AC^2\)
AB = BC = x
\(x^2+x^2=9^2\)
\(x=\frac{9}{\sqrt{2}}=6.36 inches\)
Diagonals of the square bisect each other.
OC = OA = 4.5 inches and OB = OD = 4.5 inches
Total length of iron edge required for window :
=4 × Length of square + 2 diagonals
= 4 × 6.36 + 2 × 9 = 43.44 inches
The closest answer from the given options is 43.44 inches.
