Please help me find angle # 3 on this semi-circle As a separate question I would also like to know angle # 4 If you could also please enplane your process. Thank you very much!
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y + 2y + 3y - 20 + 4y - 40 = 180 then you calculate y, find angle 3 and 4 These are very easy questions, you must study hard , i think
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