Step-by-step explanation:
step 1. distance formula: d = sqrt((y2-y1)^2 + (x2-x1)^2). sqrt is the square root.
step 2. points:(4, 5), (2, 2) d = sqrt((2-5)^2 + (2-4)^2) = sqrt(9 + 4) = sqrt(13) = 3.6
step 3. points:(-3, 4), (1, 3) d = sqrt((3-4)^2 + (1+3)^2) = sqrt(1 + 16) = sqrt(17) = 4.1
step 4. points:(1, 3), (-2,4) d = sqrt((4-3)^2 + (-2-1)^2) = sqrt(1 + 9) = sqrt(10) = 3.2.
