Right-Angled Triangles What is SOHCAHTOA? SOH, CAH, and TOA are an easy way to remember the three basic trigonometry ratios They show the relationship between an angle and the different sides of a ...
Trigonometry - Definitions What is trigonometry? Trigonometry looks at the relationship between side lengths and angles of triangles It comes from the Greek words trigonon meaning ‘triangle’ and me...
Radius & Tangent What is the relationship between tangents and radii? A?tangent?is a line that?touches?a circle at a single point but doesn't cut across the circle A tangent to a circle is perp...
Angle in a Semicircle What is the angle in a semicircle property? It is always possible to draw a?unique?circle through the three vertices of a triangle – this is called the?circumcircle of the tri...
Bisection of Chords How can I find the equation of a perpendicular bisector? The?perpendicular bisector?of a line segment: is perpendicular to the line segment goes through the midpoint of the line...
Finding the Centre & Radius How can I find the centre and radius from any form of the equation of a circle? A circle equation in a different form can always be rearranged into?(x-?a)2?+?(y?-?b)...
Equation of a Circle What do I need to know about the equation of a circle? A circle with centre?(a,?b)?and radius?r?has the equation ?You need to be able to find the centre and radius of a circle ...
Modelling with Straight Lines What is modelling with straight lines? Modelling?means applying the mathematics to a?real-life?situation The model is used to?find?or?predict?future values Models will...
Parallel & Perpendicular Gradients What are parallel lines? Parallel?lines are equidistant meaning they never meet Parallel?lines have?equal?gradients What are perpendicular lines? Perpendicula...
Basic Coordinate Geometry What is basic coordinate geometry? Basic coordinate geometry refers to working with points, lines and shapes on the coordinate axis Cartesian?coordinates are simply the?x?...
Modelling with Functions What is a mathematical model? A?mathematical?model?simplifies a real-world situation so it can be described using mathematics which can then be used to make predictions The...
Combinations of Transformations What are combinations of graph transformations? When you alter a function in certain ways, the effects on the graph of the function can be described by geometrical t...
