**Formula Sheet**

Higher Tier

**Area of trapezium** = ½ (a + b) h

**Volume of prism** = area of cross-section x length

**In any triangle ABC:**

**Area of triangle** = ½ab sinC

**Sine rule **

a | = | b | = | c |

sin A | sin B | sin C |

**Cosine rule**

a^{2} = b^{2} + c^{2} - 2bc cos A

**The quadratic equation:**

The solutions of ax^{2} + bx + c = 0, where a ≠ 0, are given by