Solve this:
26. In the given figure, AP = 3 cm, AR = 4.5 cm, AQ = 6 cm, AB = 5 cm and AC = 10 cm, then find AD and ratio of areas of ARQ and ADC.
![](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5a87e820bbdc7.png)