Determine whether the following points are collinear or not: A (3, 1), B (6,4) and C (8,6) [2 MARKS]
Concept1: 1 Mark
Application : 1 Mark
Here,
AB=√(6−3)2+(4−1)2=3√2
QR=√(8−6)2+(6−4)2=2√2
RP=√(8−3)2+(6−1)2=5√2
Here,
CA=AB+BC(5√2=3√2+2√2)
So, A, B and C are collinear points.