Points A, B, C, and D, in that order, lie on a line.
Points A, B, C, and D, in that order, lie on a line. If AB = 3 cm, AC = 4 cm, and BD = 9 cm, what is CD, in centimeters?
Answer/Solution
8
Steps/Work
Putting a value to each point, lets use the following:
A - 0
B - 3 (AB = 3)
C - 4 (AC = 4)
D - 12 (BD = 9)
CD is 12-4 = 8.
Ans B
A - 0
B - 3 (AB = 3)
C - 4 (AC = 4)
D - 12 (BD = 9)
CD is 12-4 = 8.
Ans B