Answer:
11.2
Step-by-step explanation:
Calculate the length using the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = B(4, 7) and (x₂, y₂ ) = C(2, - 4)
d = [tex]\sqrt{(2-4)^2+(-4-7)^2}[/tex]
= [tex]\sqrt{(-2)^2+(-11)^2}[/tex]
= [tex]\sqrt{4+121}[/tex]
= [tex]\sqrt{125}[/tex] ≈ 11.2
