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Advent calendar 2021

13 December

The diagram to the left shows three circles and two triangles. The three circles all meet at one point. The vertices of the smaller red triangle are at the centres of the circles. The lines connecting the vertices of the larger blue triangle to the point where all three circles meet are diameters of the three circles.
The area of the smaller red triangle is 226. What is the area of the larger blue triangle?

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