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Ainat [17]
3 years ago
13

What is the measure of AC? Enter your answer in the box.

Mathematics
1 answer:
saw5 [17]3 years ago
7 0

Answer:

21

Step-by-step explanation:

Since angle ABC is an inscribed angle, its measure is half that of arc AC. Therefore:

2(3x-1.5)=3x+9 \\\\6x-3=3x+9 \\\\3x-3=9 \\\\3x=12 \\\\x=4 \\\\AC=3(4)+9=12+9=21

Hope this helps!

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