1. No because 89+11 is 100 and complementary equals to 90 degrees
2. no because 2 obtuse angles would make 360 degrees.
3. 79 degrees
4. 15 degrees.
5. sorry don't know
6. x= 150.
b. 75 for the first one and 180 for the second
7. x=8
8. m<C = 121 degrees. because 90-21 is 59. so b is 59 and 180-59 is 121 so that's c
hope that helped!
