Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Mathematics Trigonometry Properties of Triangles
Let s denote the semi-circumference of triangle ABC in which BC = a, CA = c If a circle touches the sides BC, AB, AC at D,E,F respectively, then BD =
1
s - a
2
s - b
3
s - c
4
s - (a + c)