Jee Main
Straight Lines And Pair Of Straight Lines
JEE Main 2021 (Online) 20th July Evening Shift
INTEGER+4 / -12021
Consider a triangle having vertices A(\(-\)2, 3), B(1, 9) and C(3, 8). If a line L passing through the circum-centre of triangle ABC, bisects line BC, and intersects y-axis at point \(\left( {0,{\alpha \over 2}} \right)\), then the value of real number \(\alpha\) is ________________.