How do you get B? If it helps- the answer key says it’s 10.8 but I don’t know how I’m supposed to get there

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asked Sep 5, 2019 83.3k views

1 Answer

Sandeep Patil · Answer 1 · 2019-09-10T11:18:55+0000

One full arc is 360°

Since AB≡ PQ
⇒ 6a = 132

The sum of all the numbers around the circle should add up to 360°:
132 + 132 + 42 + 5b = 360

306 + 5b = 360

5b = 360 - 306

5b = 54

b = 54 ÷ 5

b = 10.8

Answer: b = 10.8

How do you get B? If it helps- the answer key says it’s 10.8 but I don’t know how I’m supposed to get there

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