This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
The figure below is an arc of a circle with points A, B and C on the arc. Determine the coordinates of the centre of the circle.

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Answer
(-3, 2)
Huu hapa ni utatuzi wa swali la 11.
Swali la 11: Takwimu iliyo hapa chini ni sehemu ya duara yenye pointi A, B na C kwenye sehemu hiyo. Bainisha kuratibu za kituo cha duara (alama 4). Pointi zilizopewa ni: A B C
Step 1: Fafanua kuratibu za kituo cha duara. Acha kituo cha duara kiwe . Umbali kutoka kituo hadi pointi yoyote kwenye duara ni sawa (radius). Hivyo, .
Step 2: Unda milinganyo kwa kutumia fomula ya umbali. Tunatumia fomula ya umbali . Kwanza, linganisha umbali wa mraba kutoka kituo hadi A na B (): Panua milinganyo: Ondoa na kutoka pande zote mbili: Panga upya ili kupata mlinganyo wa kwanza: Gawanya kwa 6:
Pili, linganisha umbali wa mraba kutoka kituo hadi B na C (): Panua milinganyo: Ondoa na kutoka pande zote mbili: Panga upya ili kupata mlinganyo wa pili: Gawanya kwa 6:
Step 3: Tatua mfumo wa milinganyo. Tuna milinganyo miwili ya mstari:
Ongeza Mlinganyo 1 na Mlinganyo 2:
Step 4: Tafuta thamani ya . Badilisha kwenye Mlinganyo 2:
Kuratibu za kituo cha duara ni .
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