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Problem of the Week
Problem D
Another Suncatcher

A glass suncatcher is in the shape of an equilateral triangle with sides of length \(144 \text{ mm}\). The triangle is labeled \(ABC\) and divided into \(8\) smaller sections as follows.

Two of the sections are coloured blue to form a trapezoid, as shown. Determine the area of this trapezoid.

The sections of the triangle that lie between the 4th and 5th line segments and the 5th and 6th line segments, counting from vertex B, are coloured blue.