CAT Quant · Chapter Test
Lines & Angles — 25-Question Test
A fresh, mixed-difficulty set drawn from the whole chapter — questions you haven't been asked before. Auto-graded with full solutions; your result is saved to your dashboard.
Building your 25-question test…
Formula Reference Sheet
This chapter
Angle pairs & lines
| Complementary angles | two angles summing to 90° |
|---|---|
| Supplementary angles | two angles summing to 180° |
| Linear pair | adjacent angles on a straight line sum to 180° |
| Vertically opposite angles | equal when two lines cross |
| Angles around a point | all angles at a point sum to 360° |
Parallel lines & polygons
| Corresponding / alternate angles | equal when lines are parallel |
|---|---|
| Co-interior (allied) angles | sum to 180° on parallel lines |
| Triangle angle sum | three interior angles sum to 180° |
| Polygon interior angle sum | (n − 2) × 180° |
| Polygon exterior angle sum | always 360° (one per vertex) |
CAT reference
🖩 Graphing Calculator