glencoe geometry chapter 10 formulas
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13 terms
English | Math / Symbols |
|---|---|
 Sum of interior angles | 180(n-2) |
| sum of exterior angles | 360 |
| each interior angle measure | 180(n-2)÷n |
| each exterior angle | 360/n |
| number of sides | n |
| area of a parallelogram | base x height |
| area of a triangle | A=1/2bh |
| area of a rhombus | a=½d₁d₂ |
| area of a trapezoid | A=½(b₁+b₂)h |
| area of a circle | A=πr² |
| area of regular polygon | A=1/2(apothem)(perimeter) |
| area of a sector | x°/360 times (πr²), where x is the degrees in the angle |
| probability | P(event) = number of times the event ocurs/total number of trials |
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