The four angles are similar to the top, and ninety degrees MINUS fifty degrees equals forty degrees.
A triangle and four angles form a right angle, and ninety degrees minus forty degrees equals fifty degrees.
Two angles and a triangle form a right angle, and 180 degrees MINUS 50 degrees equals 130 degrees.
1.45 degrees
440 degrees
350 degrees
2 130 degrees
(1) How many courses should North American actuaries take?
Actuaries in North America need to take seven courses.
1. Probability theory (probability)
Ex