geometry

triangle related stuff

angles in a triangle add to 180

area of a triangle

constructing an equilateral triangle

pythagoras theorem

sides of 30 90 60

quadrilateral related stuff

area of a parallelogram

area of a trapezium

constructing a parallelogram with a given angle and with an area equal to a given triangle

circle related stuff

parabola

getting the standard form equation of a parabola from the focus-directrix definition

axis of symmetry of a parabola

getting the focus, directrix and vertex

vertex equation of a parabola

the reflective property of a parabola

the equivalence of the focus-directrix definition and the conic section definition of a parabola

hyperbola

getting the standard form equation from the geometric definition

deriving the asymptote of a hyperbola

If you find a bug in this website or want to report an error,

If there are any equations for which you want proof for,

For any suggestion and ideas,

Want To Donate?

Fill This Form

Name:Email:

There was a problem rendering this.