Definition of 'altitude' and the various different ways the word is used in geometry

Definition of 'altitude' and the various different ways the word is used in geometry

The conventional method of calculating the area of a triangle (half base times altitude) with pointers to other methods and special formula for equilateral triangles

A method for calculating the area of a triangle when you know all three sides.

Definiton and properties of a trapezoid (coordinate geometry) including altitude and median

Definition and properties of triangles