If A = (7,9) and B = (3 , 12) what is the length of AB

AB = 5 units

Step-by-step explanation:

Calculate the length using the distance formula

d =

with (x₁, y₁ ) = A(7, 9) and (x₂, y₂ ) = B(3, 12)

AB =

      =

      =

      =

       = 5

the reporter's right

step-by-step explanation:

1/4 = .25 / 25%

so the possibilities of the measurement of the side of the triangle are either it is longest side or not the longest side

when it is the longest side

s < 25 + 35s < 60

if it is not the longest side

35 < 25 + s10 < sso 10 < s < 60so the perimeter70 < p < 130