如图所示,一束光照射到平面镜上,请画出其反射光线.
解:图中法线已给出,根据光的反射定律,反射光线使反射角等于入射角作出反射光线即可.如图所示:
Kate used to be________ ,but now she enjoys meeting and talking to new friends.
已知Rt△ABC中,∠ABC=90°,点D是BC中点,分别过B、C为圆心,大于线段12BC长为半径作弧,两弧交于点P,作直线PD交AC于点E,连接BE,则下列结论中不正确的是( )