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Saturday, March 19, 2011

Geom020: How big is the shaded area EFGH?

Geom020:   How big is the shaded area EFGH?
Geometry/Geom020.jpg The length of each side of the square ABCD is 10 cm. The shaded area EFGH is surrounded by 4 curves of quarter circle. How big is the shaded area EFGH?

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