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19-02-2021
Mathematics

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Determine the unknown angle measures in a hexagon whose six angles measure 69°, 108°, 135°, 204°, b°, and 2b°.

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19-02-2021

Answer:

B = 68

Step-by-step explanation:

(6-2)×180 = 720

69+108+135+204+b+2b=720

516+3b=720

3b=720-516

3b=204

b= 68

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