Edexcel IGCSE Maths 复习笔记 4.7.1 Intersecting Chord Theorem What are circle theorems? Circle?theorems?are?angle?(and?distance)?properties?that arise when lines and shapes drawn within or connecte...
Edexcel IGCSE Maths 复习笔记 4.6.4 Circle Theorems - Alternate Segment What you need to know Alternate Segment Theorem The Alternate Segment Theorem states that the angle betwe...
Edexcel IGCSE Maths 复习笔记 4.6.3 Circle Theorems - Cyclic Quadrilaterals More advanced circle theorems 1. Opposite angles in a cyclic quadrilateral add up to 180° Double-check is that all ...
Edexcel IGCSE Maths 复习笔记 4.6.2 Circle Theorems - Tangents What do I need to know about tangents 1. A radius and a tangent are perpendicular Note that?perpendicular?lines meet at right angles &n...
Edexcel IGCSE Maths 复习笔记 4.6.1 Circle Theorems - Angles at Centre & Circumference What are circle theorems? You will have learned a lot of angle facts for your GCSE – angles in polygons, an...
Edexcel IGCSE Maths 复习笔记 4.5.1 Loci & Construction What are loci and constructions? A?locus?(loci?is plural) is a line/shape/path that is determined by following a rule – eg. always being 2...
Edexcel IGCSE Maths 复习笔记 4.4.2 Speed, Density & Pressure - Harder What are speed, density and pressure? Speed,?density?and?pressure?are compound measures – they are made from other measures...
Non-Coding DNA The genome within?eukaryotic?cells contains many non-coding sections of DNA Non-coding DNA?does not code for any amino acids Non-coding DNA can be found?between?genes, ...
Edexcel IGCSE Maths 复习笔记 4.4.1 Speed, Density & Pressure What connects speed, density & pressure? Speed, density and pressure are all examples of variables which are calculated by divid...
