👉 Learn about parallel lines and a transversal theorems. Two lines are said to be parallel when they have the same slope and ...

👉 Learn about congruent triangles theorems. Two or more triangles are said to be congruent if they have the same shape and ...

Circle theorems are properties that are true for all circles, regardless of their size. There are six theorems to learn and recognise. Questions can have a combination of theorems. It is important to ...

When calculating angles using a circle theorem, always state which theorem applies. It may not be possible to calculate the missing angle immediately. It may be necessary to calculate another angle ...