PDF chapter test TRY NOW

Using the data given below, find the unknown:
 
\triangle ABC is right-angled at A, and AD \perp CB.
 
If AC = 7 cm, AD = 3.8 cm and BD = 5.6 cm, find the value of AB.
 
12 Ресурс 1.svg
 
AB =  cm
 
[Note: Round off the answer obtained to one decimal places]
1