Jennyg2 Jennyg2

20-04-2017
Mathematics

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Find the value of arc AD

Find the value of arc AD class=

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jdoe0001 jdoe0001

20-04-2017

so hmmm if we use the "intersecting chords theorem", the angle of 93°, is really 1/2 * (arcBC + arcAD)

thus [tex]\bf 93=\cfrac{1}{2}(\widehat{BC}+\widehat{AD})\implies 93=\cfrac{161+\widehat{AD}}{2} \\\\\\ 186=161+\widehat{AD}\implies 186-161=\widehat{AD}[/tex]

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