What is the length of segment cd question mark

cd = two square root of 10 end square root

cd = 6

cd = 8

cd = 40

CD = two square root of 10 end square root

Step-by-step explanation:

To find the length of a segment, use the distance formula. Substitute the order pairs for the endpoints of the segment. CD has the end points (-7, -4) and (-1, -2).

table 3 represents a direct variation function. : )