Category: gcse
- 3D geometry
- Angle at the centre of a circle is twice the angle at the circumference
- Angle in a semicircle is 90 degrees
- Angles in the same segment of a circle are equal
- Area and circumference of circles
- Area and perimeter
- Area and perimeter of quadrilaterals
- Area and perimeter of triangles
- Circle geometry
- Congruent and similar shapes
- Congruent shapes
- Congruent triangles
- Cosine rule
- Cube
- Cube surface area and net
- Decagons - polygons with 10 sides
- Dodecagons - polygons with 12 sides
- Einstein's proof of Pythagoras' theorem
- GCSE
- GCSE graphs
- GCSE measures
- Geometry
- Geometry basic rules
- Gradient of a line
- Graphs of sloping lines through the origin
- Hendecagons - polygons with 11 sides
- Heptagons - polygons with 7 sides
- Hexagons - polygons with 6 sides
- Horizontal, vertical and diagonal straight line graphs
- Interior and exterior angles of a polygon
- Line symmetry
- Loci
- Locus of points a fixed distance from a given line
- Locus of points a fixed distance from a given point
- Locus of points an equal distance between 2 lines
- Locus of points an equal distance between 2 points
- More quadrilaterals
- Nonagons - polygons with 9 sides
- Octagons - polygons with 8 sides
- Opposite angles in a cyclic quadrilateral add up to 180°
- Other types of polygon
- Parallel lines
- Parts of a circle
- Pentagons - polygons with 5 sides
- Perpendicular bisector of a chord
- Polygons
- Pythagoras
- Pythagoras' theorem
- Pythagoras' theorem proof
- Pythagorean triples
- Quadrilateral family tree
- Quadrilaterals
- Regular polygons
- Regular tessellations
- Rotational symmetry
- Similar shapes
- Similar triangles
- Similar triangles proof
- Sine rule
- Star polygons
- Straight line graphs
- Tangent and radius of a circle meet at 90°
- Tessellations and symmetry
- Transformations
- Translation
- Triangles
- Trigonometry
- Trigonometry and Pythagoras
- Two radii form an isosceles triangle
- Two tangents from a point have equal length
- Why are the trig functions called sine, cosine and tangent?
- n-gons - polygons with any number of sides
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