Answer:
1: f; 110
2: b; 70
3: e; 105
4: c; 75
5: a; 35
Step-by-step explanation:
Start with one that is easy to find, like 5, 4, or 3.
5. We know that 5 is on a 180 degree line with the angle of 145. Subtract 145 from 180 to find 5. This angle is 35.
4. We also know that 4 is a vertical angle to 75, which means 4 will also be 75.
3. Solve like you did for 5. 180 - 75 = 105.
2. First, find another angle inside the triangle shape. Look at the angle for 5 for this one. We know it is 35. That means the vertical angle inside is also 35. Subtract both interior angles to find 2. 180 - 75 - 35 = 70.
1. Finally, take the angle you got for 2, 70, and subtract it from the straight line, 180. 180 - 70 = 110.
