Answer:
67.38 degrees
Step-by-step explanation:
The diagram illustrating this problem is attached below:
• The length of the ladder, AB = 13 feet
,
• The wall = BC
,
• The distance from the ladder to the wall, AC= 60 inches

The angle of elevation is labeled x above:
Using trigonometric ratios:

The angle of elevation made by the bottom of the ladder and ground is 67.38 degrees.