It contains, among other things, sections on similarity, transversals, vector geometry, inversion, and coaxal circles ... A Course of Plane Geometry for Advanced Students. Part 1.
we need to know what fraction of the circle is shown. To do this, we use the angle and compare it with 360Ëš. This angle is 144°. That is \(\frac{{144^\circ }}{{360^\circ }} = \frac{2}{ ...
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