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adoni [48]
2 years ago
12

Help me help me 10 points

Mathematics
1 answer:
Shtirlitz [24]2 years ago
3 0

Answer:

arc BC = 84 degrees

Step-by-step explanation:

notice:

need to find n  before finding arc BC

(13n -16) + (7n + 12) + 6n = 360

13n + 7n + 6n  - 16 + 12  = 360

26n  - 4 = 360

26n = 364

n = 364/26  = 14

so arc BC = 6*14 = 84 degrees

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Step-by-step explanation:

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2 years ago
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