AQA AS maths summary and examples of geometrical reasoning

Key notes containing: - Linear graphs fundamentals ( gradient, equations of a line, perpendicular & parallel lines, distance between points, perpendicular bisectores ) - Modelling example Simultaneous equations ( substitution vs elimination, intersections, quadratic ) - drawing quadratic graphs - circles ( equation of a circle ( completing the square ), intersections of lines and circles, tangents, chords, perpendicular bisectors) - example of how to determine the circle centre - triangles in circles ( examples) - cosine rule ( proof, example ) - sine rule (proof, examples, finding obtuse or acute angle ) - area of triangle (example) - radians (converting between radians and degrees, common angles) - exact trig values - arc length (example) - sector area (example) - segment area (example)