题目

如图，PA、PB分别与⊙O相切于A、B两点，若∠C=65°，则∠P的度数为_____． 答案：【答案】50°【解析】∵PA、PB是⊙O切线，∴PA⊥OA，PB⊥OB，∴∠PAO=∠PBO=90°，∵∠P+∠PAO+∠AOB+∠PBO=360°，∴∠P=180°﹣∠AOB，∵∠ACB=65°，∴∠AOB=2∠ACB=130°，∴∠P=180°﹣130°=50°，故答案为50°．In some countries _______ are called "public school" are not owned by the public. A.whichB.asC.whatD.that