loveeegabbie7071
01.02.2020 •
Mathematics
Given: oc = 1/2 od
dc is a tangent line
find: m∠dac
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Ответ:
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Step-by-step explanation:
DC meets the circle at right angles because it is a tangent.
Triangle COD is a right triangle, with OD being the hypotenuse.
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But ,
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But .
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Ответ: