YouTube on MSNOpinion

Find the line perpendicular to a line through a given point

👉 Learn how to write the equation of a line that is perpendicular to a given line. The equation of a line is such that its ...
YouTube on MSNOpinion

Given two points, finding the equation of the line perpendicular to it

In this video series I show you how to determine a line that is parallel or perpendicular to another line through a point.
BBC

Equations of parallel and perpendicular lines

Higher - The gradients of two perpendicular lines will always multiply to make –1. Make sure you are familiar with finding the equation of a line and calculating gradient to understand equations of ...
BBC

Area of parallelograms

The base and perpendicular height are at right angles. Showing that a parallelogram has the same area as a rectangle: Split the parallelogram into a right-angled triangle and a trapezium. Move the ...