Calculate the missing angles \(x\), \(y\) and \(z\). The angle in a semicircle is 90°.

Circle theorems are properties that are true for all circles, regardless of their size. There are six theorems to learn and recognise. Module 4 (M4) – Geometry & measures - Complex perimeter, area & ...

Mathematics is distinguished from the sciences by the freedom it enjoys in choosing basic assumptions from which consequences can be deduced by applying the laws of logic. We call the basic ...