已知锐角A和B,求作一个角,使它等于角A-角B
已知锐角A和B,求作一个角,使它等于角A-角B
数学人气:707 ℃时间:2019-11-06 21:48:02
优质解答
分别以AB为圆心,任意长为半径作弧,分别交角A,B的边于C、D,E、F再以E为圆心CD长为半径作弧交弧EF于G,角FBG即是
我来回答
类似推荐
猜你喜欢
- 1In my o_____ ,doing too much homework is not good for our study.
- 2My mother was ill two days ago.(同义句转换)My mother__ __ ill__ two days
- 3As our stocks are rather limited,we would recommend in your interest that you accept our offer with
- 4TThe Gushan Bridge has been finished on time the engineers' hard work.
- 5描写桥的句子
- 6一辆长120米货车遇到一辆迎面开来的长160米的客车,从车头相遇到车尾离开共用了8秒,货车每秒行驶17米,客
- 7设函数f(x)是定义在(-∞,0)上的可导函数,其导函数为f′(x),且有f(x)+xf′(x)<x,
- 8保护色,拟态,警戒色的区别,举例
- 9一根木条长8厘米,另一根长12厘米,再拿一根至少多长的木条就可以条成三角形?
- 10已知向量OA=(3,-4),OB=(6,-3),OC=(5-m,-3-m). (1)若点A、B、C共线,求实数m的值; (2)若△ABC为直角三角形,且∠C=90°,求实数m的值.