Question

AB is parallel to CD.

The lines AD and BC intersect at point O.
AB = 11 cm, AO = 8 cm, OD = 6 cm.
Calculate the length of CD.

Answer 1

AB is parallel to CD.

apply thales theorem

OA/OD=AB/CD

8/6 = 11/CD

CD = (6*11)/8=33/4=8.25cm

Explanation: