circle angle thing | Revision Server | Page 1

cloud rain Jan 12, 2023, 8:58 PM

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My grannys gave this to her students but she can't even do it and I haven't been taught anything like this and the theorems aren't helping 😭

plush sluice Jan 12, 2023, 9:04 PM

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so

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using the circle theorem on arcs

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you can say BCA is also 43

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43+37 = BCD = 80

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now

cloud rain Jan 12, 2023, 9:05 PM

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Wait where's bco?

plush sluice Jan 12, 2023, 9:05 PM

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opposite angles in a cyclic quadrilateral = 180
so 180-80 = 100
BAD = 100

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O is origin

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i think thats the origin

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if not then whatever the middle point is

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wait i mean BCA

cloud rain Jan 12, 2023, 9:05 PM

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Like the corner touching the circle

plush sluice Jan 12, 2023, 9:05 PM

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mb

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Yeah

cloud rain Jan 12, 2023, 9:07 PM

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Ahh I get you now tysm

#circle angle thing