Question

What is the distance between these two points: (1, 2) and (9, 8)?

Answer 1

Dab = square root of ( xa - xb )^2 + (ya - yb)^2

square root of (1 -9 )^2 + (2 - 8)^2

square root of (-8)^2 + (-6)^2

square root of 64 + 36

square root of 100

10 units