Math Definitions - Letter O


Definition of Orthocentre

Definition of Orthocentre

The orthocentre of a triangle is the point where all three of its altitudes (the lines through each vertex, perpendicular to the opposite side) intersect.

The orthocentre may lie either inside or outside the triangle.


The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.


Year 1 to Year 12 students

Learning Objectives

Learn common math terms starting with letter O

Author: Subject Coach
Added on: 6th Feb 2018

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