• 2022-06-18
    如图,AC[img=14x19]1803b534f3cc7be.png[/img] BC于点C,BC=a,CA= b,AB= c,[img=14x19]1803b534fc32384.png[/img][img=14x19]1803b53504f8742.png[/img]与直线AB、BC、CA 都相切,则[img=14x19]1803b534fc32384.png[/img][img=14x19]1803b53504f8742.png[/img]的半径等于多少?[img=554x174]1803b5352131d22.jpg[/img]
    A: c+b+a
    B: c-b+a
    C: [img=62x44]1803b53529eaaf2.png[/img]
    D: [img=62x44]1803b535357aac3.png[/img]
  • 举一反三