16,18,20,22,24.

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May 21st, 2015

16. Minor Arc, 75. 180-75-30=75

18. Major Arc, 255. 180+75=255

20. Semicircle, 180. Semicircles are always 180 degrees.

22. 25 degrees. B bisects arc AD, which equals 50. So, BD = 25.

24. 205 degrees. AE = 180, as that line is the diameter, and thus a semicircle. 25+180 = 205.

Hope this helps!

May 21st, 2015

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