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1、先画一个三角形
2、内切圆是三条角平分线交点我们可以画两条角平分线交于一点
3、还需要有半径在这个交点做对边的垂线垂足为G
4、用圆圆心+点)画出内切圆
总结:
1、充分利用数学知识思考尺规作图怎么做就在GGB上怎么做。
2、无用的线最后隐藏掉即可。