
@MasterIdunn @chnshxing6 做辅助线,形成五边形,内角和540,已知两内角120,辅助线形成角互补为180(不需要垂直)得?=540-120*2-180=120
中文
死霊
100 posts

@fixer_freedom
I have been in Japan for 2 years, and now I am working as a housing agency here in Tokyo, Japan. Anyone who rents a house can contact me