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formule de géométrie
Geometry Formulas
| Question | Answer |
|---|---|
| Parallelogram Rectangle Square | bh |
| Rhombus | 1/2 (d1)(d2) |
| Triangle | 1/2 bh |
| Triangle when given all three sides | S=(a+b+c)/2 A=square root of (S)(S-a)(S-b)(S-c) |
| Triangle-with SAS | 1/2 (S1)(S2)(sin<) |
| Finding <'s of a triangle | put in degree use 2nd |
| Finding legs of a triangle | put in degree |
| 30:60:90 | x:xtimes sq rt of 3:2x |
| 45:45:90 | x:x:x times sq rt of 2 |
| Kites | 1/2 (d1)(d2) |
| Regular Polygon | 1/2 ap |
| Cirlce-area | pi r^2 |
| Circle-circumference | 2(pi)(r) |
| Arc length | m<A/360 times Circumference |
| Area of a sector | m<a/360 times area of a circle |
| Segment of a Circle | m<A/360 times are of a circle - triangle formula |