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Questions and answers by
Paul Zoherliana
Answers (1)
Draw a diagram,the line from the centre O meet AB at E and CD at F. Let OF be x then OE = 17-x. Join AO and OC In Triangle AOE, Radius r²= 5² + (17-x)² and In Triangle COF, Radius r²= 12² + x² then 12² + x²= 5² + (17-x)² 144 + x² = 25 + 289 -34x
