Question Number 69496 by ajfour last updated on 24/Sep/19
Commented by ajfour last updated on 24/Sep/19
$${Find}\:{radius},\:{is}\:{it}\:{real}? \\ $$
Commented by mr W last updated on 24/Sep/19
$${i}\:{think}\:{with}\:{given}\:{conditions}\:{the} \\ $$$${radius}\:{is}\:{not}\:{unique}.\:{we}\:{need}\:{two} \\ $$$${conditions}\:{more}. \\ $$
Commented by mr W last updated on 24/Sep/19
Commented by mr W last updated on 24/Sep/19
$${P}\:{is}\:{given}. \\ $$$${points}\:{A},{B},{C},{D}\:{are}\:{unknown},\:{we} \\ $$$${have}\:{totally}\:\mathrm{8}\:{unknowns}. \\ $$$${the}\:{circle}\:{passes}\:{through}\:{points} \\ $$$$\mathrm{1},\mathrm{2},\mathrm{3},\mathrm{4},\mathrm{5},\mathrm{6}.\:{we}\:{get}\:{only}\:\mathrm{6}\:{equations}. \\ $$$${therefore}\:{we}\:{need}\:{two}\:{conditions} \\ $$$${more}\:{to}\:{determine}\:{all}\:{four}\:{points} \\ $$$${A},{B},{C},{D}. \\ $$
Commented by ajfour last updated on 24/Sep/19
$${The}\:{question}\:{seem}\:{correct}\:{to}\:{me} \\ $$$${Sir},\:{six}\:{informations}\:{and}\:{six} \\ $$$${unknowns}. \\ $$