# Pythagoras and Trigonometry

### Pythagoras' theorem: find the hypotenuse

### Pythagoras' theorem: find a non-hypotenuse

### Trigonometry: Mnemonic to help choose the correct ratio

### Trigonometry: Sine ratio

### Trigonometry: Cosine ratio

### Trigonometry: Tangent ratio

### Cosine rule: find a side

### Cosine Rule: find an angle

### Sine rule: find a side

### Sine rule: find an angle

### Area of a triangle (trigonometry)