Answer :

Epis

C=(-4,-6)

D=(1,-6)

lCDl=√(1-(-4))²+(-6-(-6))²

lCDl=√(1+4)²+(-6+6)²

lCDl=√5²+0²

lCDl=√25

lCDl=5

the distance between the CD points is 5