GRE Math Review 3 GEOMETRY - ETS Home

The Math Review consists of 4 chapters: Arithmetic, Algebra, Geometry, and Data Analysis. ... The first and the third of the angles, that is, angles APC and BPD, are called opposite angles, also known as vertical angles. The second and fourth of the angles, that is angles CPB and DPA are also opposite angles. Opposite angles have equal measures ... ................
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