Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 Quantitative Aptitude Mensuration Plane Figures
Let s denote the semi-perimeter of a 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)