TS EAMCET 11-Sep-2020 Shift 2 Solved Paper

Given that, points A(4,7,8),B(2,3,4) and C(2,5,7)
Length AB=6
Length AC=3⇒AB:AC=6:3=2:1
Now, let say the internal bisector of the angle A meets the side BC that point D(xD,yD,zD)
∴x -coordinate of point D,
y -coordinate of point D,
z-coordinate of point D,z-coordinate of point D,
∵ Point D(2,‌

13

3

,6)
So, length =√(2)2+(‌

8

3

)2+(2)2