1103025401

Level: 
Project ID: 
1103025401
Source Problem: 
Accepted: 
1
Clonable: 
1
Easy: 
0
A regular hexagonal prism ABCDEFABCDEF has the side a of the length 3cm and the height v of the length 8cm. Find the angle between the lines AD and BD. Round the result to two decimal places.
17.46
72.54
16.70
20.57