In the figure, AE & BC intersect each other at D. If ∠CDE = 90o, AB = 5 cm, BD = 4 cm & CD = 9 cm. Find DE.
4 cm
20 cm
9 cm
3 cm
12 cm
In the given figure, AE and BC intersect each other at point D. If ∠CDE=900, AB = 5cm, BD = 4cm and CD = 9 cm, find AE.