A square stained glass window is divided into four congruent triangular sections by iron edging to represent the seasons of the year. Each diagonal of the square window measures 9 inches.
What is the approximate total length of iron edging needed to create the square frame and the two diagonals?
43.5 inches
50.9 inches
54.0 inches
61.5 inches

ANSWERS

2015-11-01 12:32:43

using the pythagoras theorem if the length of each side of the square is x: 2x^2 = 9^2 = 81 x = sqrt40.5 = 6.364 in so the total of iron strip needed = 4*6.364 + 2*9 = 43.5 ins to nearest tenth

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