Answer:
6.40 units (3 s.f.)
Step-by-step explanation:
distance between 2 points= [tex] \sqrt{(x2 - x1)^{2} + {(y2 - y1)}^{2} } [/tex]
Thus, length of CD
[tex] = \sqrt{ {( - 2 + 6)}^{2} + {(4 + 1)}^{2} } \\ = \sqrt{{4}^{2} + 5^{2} } \\ = \sqrt{41} \\ = 6.40 \: \: (3 \: s.f.)[/tex]
