Plz quickly if answered i will give 20 points to youlook at triangle abc what is the length of side a b of the triangle a ( 4,5) b (1,2) c ( 4,2). what is the length of side ab of the triangle? is it square root 6 is it 3 is it square root 18 or is it 6

Square root of 18.

Step-by-step explanation:

AB = sqrt ((5 - 2)^2 + (4 - 1)^2)

=  sqrt18.

the correct answer is option c.   3

step-by-step explanation:

points to remember

equation of the line with coordinates (x₁, y₁) and (x₂, y₂) is given by,

slope m = (y₂ - y₁)/(x₂ - x₁)

from the figure we can see a line with two coordinates given

to find the slope of given line

here   (x₁, y₁)   = (-1, -1 ) and (x₂, y₂) = (1, 5)

slope m = (y₂ - y₁)/(x₂ - x₁)

  = (5 - -1)/(1 - -1)

  = (5 + 1)/(1 + 1)

  = 6/2 = 3

therefore the correct answer is option c.   3

i think is 3 and 6. this took me 10 min to think.hope to and hope that my answer is brainliest.(follow me )