X= (180-75+5):5=22°
Sudut ABD = 3x
= 3.22
= B. 66°
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
X= (180-75+5):5=22°
Sudut ABD = 3x
= 3.22
= B. 66°
--> 3x + 75° + 2x - 5° = 180°
--> 5x + 70° = 180°
--> 5x = 180° - 70°
--> x = 110° / 5
--> x = 22°
Besar sudut ABD
--> 3x
--> 3(22°)
--> 66°
Maka besar sudut ABD adalah 66°
#Semoga membantu