Question

I don’t understand number 4

Answer 1

1.75
2.15
3.105
4.90
these are the answers

Answer 2

Angle 2 would also be 75 degrees.
75+75 = 150
150 + 90 = 240
240 + 75 = 316
360 - 316 = 44

Angle 1 = 75 degrees.
Angle 2 = 75 degrees Angle 3 = 150 Angle 4 = 90