Focus on Locus 1: The First Things
Locus is one of the most crucial questions of Math Exam and contributes more than 6% (12 marks) to the final exam score. Candidates ought to take the topic seriously and carefully attempt the question.
There are few major concepts that must be mastered on the topic
1. Learn to construct a 60, 90, and 120 degree angles
These are most common requirements of exam questions. They form the basics of loci and other angles are build upon these angles.
Candidates should be able to construct these angles using compasses and rulers only. Accuracy and visibility of arcs, labels and lines guarantee a higher score.
2. Learn to bisect a line and an angle.
Bisecting an angle means to divide the angle into two equal angles. Bisection gives two or more small, equal angles. It's an important concepts in finding equi-distance between two lines, for instance,finding an equidistance between AB and BC.
Line bisection is finding the midpoint of a line and it's the basic concept of constructing perpendicular lines (90 degrees). This is the equidistance between two points for instance, an equidistance between A and B.
Bisection of an angle helps much in constructing odd angles like 135, 150, 105 and 150.
A 135 angle can be constructed using 90 angle concept and then another bisected 90 angle (45 degree angle). An angle can bisected further into 4, 6 or more equal parts.
Locus is one of the most crucial questions of Math Exam and contributes more than 6% (12 marks) to the final exam score. Candidates ought to take the topic seriously and carefully attempt the question.
There are few major concepts that must be mastered on the topic
1. Learn to construct a 60, 90, and 120 degree angles
These are most common requirements of exam questions. They form the basics of loci and other angles are build upon these angles.
Candidates should be able to construct these angles using compasses and rulers only. Accuracy and visibility of arcs, labels and lines guarantee a higher score.
2. Learn to bisect a line and an angle.
Bisecting an angle means to divide the angle into two equal angles. Bisection gives two or more small, equal angles. It's an important concepts in finding equi-distance between two lines, for instance,finding an equidistance between AB and BC.
Line bisection is finding the midpoint of a line and it's the basic concept of constructing perpendicular lines (90 degrees). This is the equidistance between two points for instance, an equidistance between A and B.
Bisection of an angle helps much in constructing odd angles like 135, 150, 105 and 150.
A 135 angle can be constructed using 90 angle concept and then another bisected 90 angle (45 degree angle). An angle can bisected further into 4, 6 or more equal parts.
