Answers

✨ Best Answer ✨

△ABCで
40°+◯◯●●=180°
◯◯●●=140°
◯●=70°

△ACDで
Χ+◯●=180°

◯●=70°だから
Χ+70°=180°
Χ=110°

Post A Comment
Were you able to resolve your confusion?