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Bisector theorem In a triangle ABC, the bisector of the angle A determines on the opposite side (BC) segments proportional to the sides of the angle BD/DC=BA/CA |
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Fill in the value of the segments: BD, DC, BA and find out the result if you apply the formula from the bisector theorem | ||
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| An angle bisector in a triangle divides the opposite side into two segments which are in the same proportion as the other two sides of the triangle. | |||
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An angle bisector of an angle of a triangle divides the opposite side in two segments that are proportional to the other two sides of the triangle. Reciprocal of the bisector theorem: If a point D inside the side BC divides it into segments that respect the relation BD / CD = AB / AC, then AD is the bisector of the angle A. |
 | mathematics |
measurement units | |
