fredvales19
27.03.2020 •
Mathematics
What is the value of n?
A.81
B.85
C.38
D.47
Solved
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Ответ:
B
Step-by-step explanation:
∠ABC= 180° -142° (adj. ∠s on a str. line)
∠ABC= 38°
∠BAC= 180° -133° (adj. ∠s on a str. line)
∠BAC= 47°
∠ACB= 180° -38° -47° (∠ sum of △)
∠ACB= 95°
n°= 180° -95° (adj. ∠s on a str. line)
n°= 85°
n= 85
Ответ:
do you have some image?
Step-by-step explanation: