2a+7a=90°
9a=90°
a=90:9
a=10°
CBD= 7a
CBD=7.10
CBD= 70°
B. 70°
Sudut ABC 90°=70a+20a=90a
CBD =70a= 70°
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2a+7a=90°
9a=90°
a=90:9
a=10°
CBD= 7a
CBD=7.10
CBD= 70°
B. 70°
Sudut ABC 90°=70a+20a=90a
CBD =70a= 70°