Choosen As Best Answer

AB = 17
△OAB = 1/2 × r × 17
△OBC = 1/2 × r × 15
△OAC = 1/2 × 3r × 8

△ABC = 1/2 × 8 × 15

17r + 15r + 24r = 120
56r = 120
r = 15/7

SUNDAY🌱

謝謝!!

Post A Comment
News
【IG直播懶人包】十大科目筆記方法分享
【開學必讀】準高中、準大學生必知二三事
【筆記方法】國文筆記怎麼做,三個超強筆記方法大公開