Circles have different angle properties, described by a number of theorems. This is one of two guides on circle theorems, with this guide covering the following: the angle subtended by an arc at the ...

The sides of right-angled triangles are labelled opposite, hypotenuse and adjacent. Trigonometry explores the relationship between sides and angles in right-angled triangles. The hypotenuse is the ...

How do I add soul to a long room with high ceilings which is both an entrance hall and a dining room? You could consider painted panelling to almost the top of the walls, and painting this in a warm, ...