Jawaban:
∠ADC + ∠BCD = Berpelurus
3x° + (2x - 10)° = 180°
3x° + 2x - 10° = 180°
5x° - 10° = 180°
5x° = 180° + 10°
5x° = 190°
x° = 190°/5
x° = 38°
∠BCD = (2x - 10)°
= (2(38)° - 10)°
= (76° - 10)°
= 66°
'비상'
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Jawaban:
Mencari nilai x°
∠ADC + ∠BCD = Berpelurus
3x° + (2x - 10)° = 180°
3x° + 2x - 10° = 180°
5x° - 10° = 180°
5x° = 180° + 10°
5x° = 190°
x° = 190°/5
x° = 38°
Besar sudut ∠BCD
∠BCD = (2x - 10)°
= (2(38)° - 10)°
= (76° - 10)°
= 66°
'비상'