Geometry is packed with terminology that precisely describes the way various points, lines, surfaces and other dimensional elements interact with one another. Sometimes they are ridiculously ...

Prove two triangles are congruent by showing they satisfy one of four criteria. Find missing lengths by using the scale factor. The relationship between similar shapes may be expressed as a ratio.

ii) (Prove) If two lines intersect, the vertically opposite angles are equal. iii) (Motivate) Results on corresponding angles, alternate angles, and interior angles when a transversal intersects two ...