Geometry & Trig

Area and volume, triangles, circles, trig

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1. 1Area and volume, forward and in reverseWrite the formula, then solve for whatever's missing10 min
2. 2Use scale factors for similar figuresFind k, then use the power the measure needs9 min
3. 3Angle chasingOne fact per step, from the given to the target10 min
4. 4Similar-triangle and segment ratiosMatch the angles first, then use whole sides11 min
5. 5Pythagorean theorem and trig ratiosTurn one ratio and one side into the whole triangle10 min
6. 6Trig relationships beyond one triangleSwap at the complement, strip the full turns10 min
7. 7Circle equations, points, and tangentsGet to standard form, then read center and radius10 min
8. 8Arcs, sectors, chords, and anglesTurn the central angle into a fraction of the circle10 min