# If ABCD is a square, then ABCD is a quadrilateral.

Pełen tekst

### l If triangle ABC is right-angled, then a

### p If x

### q If x

### r If x

### s If x

### q: x

### b Using the results of part

### i x > 3 and x

### ii x > / 3 and x

### [Note: the symbol > / denotes

### d State which one of the propositions in part

### i p q

### The conjunction of any two statements p and q is written p

### p q p

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