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| BISECTING A LINE |
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| Dividing a line into two equal portions is a geometrical skill called ‘bisecting a line’. |
| HOW TO BISECT A LINE |
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| DRAW A HORIZONTAL LINE. SET A COMPASS TO OVER HALF THE LINES LENGTH (KEEP THE COMPASS AT THIS DISTANCE). STRIKE FOUR ARCS AS SHOWN BELOW. DRAW A PERPENDICULAR LINE THROUGH BOTH ‘CROSSES’ AND YOU WILL HAVE BISECTED THE ORIGINAL LINE. |
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| BISECTING AN ANGLE |
| STAGE ONE |
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| STAGE TWO |
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| STAGE THREE |
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| STAGE FOUR |
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| FINDING THE CENTROID (CENTRE) OF A TRIANGLE |
| STAGE ONE |
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| STAGE TWO |
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| STAGE THREE |
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AS FURTHER PROOF THAT THIS TECHNIQUES WORKS ON TRIANGLES: DRAW AN ISOSCELES TRIANGLE AND BISECT ALL THE SIDES. |
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| CLICK HERE FOR TECHNICAL DRAWING INDEX PAGE |
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