" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Kelas 8 MatematikaBab Lingkaran
Sudut BOA
= 180° - sudut BOC
= 180° - 40°
= 140°
Sudut ADB
= 1/2 . sudut BOA
= 1/2 . 140°
= 70°