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gizmo_the_mogwai [7]
4 years ago
15

Circle D is below.What is the arc measure of BC in degrees?(7n – 12)​

Mathematics
2 answers:
frozen [14]4 years ago
7 0

Answer:

84

Step-by-step explanation:

The sum of the central angles is equal to 360. You set up an equation:

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

You combine like terms:

26n - 4 = 360

You add 4:

26n = 364

Divide by 26:

n = 14

To find BC you plug in "n=14" in the equation BC = 6n. You multiply 14 by 6 and get 84

tensa zangetsu [6.8K]4 years ago
7 0
The answer is 84 hope this helps
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