△ABC周长为12cm,面积为6cm²,则其内角平分线的交点O到AB的距离为_____.
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![△ABC周长为12cm,面积为6cm²,则其内角平分线的交点O到AB的距离为_____.](/uploads/image/z/4538036-20-6.jpg?t=%E2%96%B3ABC%E5%91%A8%E9%95%BF%E4%B8%BA12cm%2C%E9%9D%A2%E7%A7%AF%E4%B8%BA6cm%26%23178%3B%2C%E5%88%99%E5%85%B6%E5%86%85%E8%A7%92%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9A%84%E4%BA%A4%E7%82%B9O%E5%88%B0AB%E7%9A%84%E8%B7%9D%E7%A6%BB%E4%B8%BA_____.)
△ABC周长为12cm,面积为6cm²,则其内角平分线的交点O到AB的距离为_____.
△ABC周长为12cm,面积为6cm²,则其内角平分线的交点O到AB的距离为_____.
△ABC周长为12cm,面积为6cm²,则其内角平分线的交点O到AB的距离为_____.
距离=6×2÷12=1
点O到AB的距离就是内切圆的半径长