Big Thanks go out to Bilbao for submitting this one!
The seven inner triangles in the picture are isosceles. The outer big triangle is also isosceles.
What is the value of each of the angles in the picture?
Answers to this challenge can be entered into the section below; submissions will automatically be revealed when time is up!
Earlier puzzles from Bilbao:
The 12 dots
The Unreadable Account
3 Men by the Seaside