Answer:
try using photo math. it will work
9514 1404 393
Answer:
- vertex: 171°
- central: 9°
- exterior: 9°
Step-by-step explanation:
The central angle is equal to the exterior angle:
360°/n = 360°/42 = 8 4/7° ≈ 9°
The vertex angle is the supplement of this:
180° -8 4/7° = 171 3/7° ≈ 171°
Answer:
- 84
Step-by-step explanation:
4 (2x-3)+4=-20.
8x-8=-64
-20+-64=-84