Mathematics · Geometry
Let 's' denote the semi-perimeter of a triangle ABC in which BC = a, AC = b, and AB = c. If an incircle touches the sides BC, AB, and AC at D, E, and F respectively, then the length of the segment BD is equal to:
- 1s - (a + c)
- 2s - c
- 3s - a
- 4s - b✓
Correct answer
s - b
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