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Mathematics 17 Online
kekeman:

Help please https://snipboard.io/6wrG9Z.jpg

Mercury:

notice how <CFE and <CDE have their vertices on the outside of the circle, rather than the center of the circle. this makes them inscribed angles rather than central angles. so that already narrows us down to choices 2 and 4. now, are inscribed angles half, or equal, to the measures of their intercepted arcs? if you are unsure, please review https://www.ck12.org/book/ck-12-basic-geometry-concepts/section/9.5/

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