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Perpendicular lines and their Equation
In this section I will explain to you all you need to know about perpendicular lines to pass your IGCSE GCSE maths exam. You will learn what the gradient of perpendicular lines are and how to construct the equations of perpendicular lines. First it is important to understand what perpendicular lines are. Do you have any idea? Perpendicular lines are lines which make an angle of 90 degrees with each other. So looking at the picture of the building you might spot some perpendicular lines. Study all the example questions during your maths revision and let me know if you need more help with your maths.
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