本课配套习题挑战模式1/5
单选题
难度系数:
1.已知⊙O的直径是10,圆心O到直线l的距离是5,则直线l和⊙O的位置关系是( )
A: 相离 |
B: 相交 |
C: 相切 |
D: 外切 |
一次做对,真牛!
+5奖励规则>
- 提示1:5rGC5Ye64oqZT+eahOWNiuW+hO+8jOWSjOWchuW/g0/liLDnm7Tnur9s55qE6Led56a7NeavlOi+g+WNs+WPr++8jg==
- 答案:Qw==
6Kej77ya4oi14oqZT+eahOebtOW+hOaYrzEw77yMPGJyPuKItOKKmU/nmoTljYrlvoRyPTXvvIw8YnI+4oi15ZyG5b+DT+WIsOebtOe6v2znmoTot53nprtk5pivNe+8jDxicj7iiLRyPWTvvIw8YnI+4oi055u057q/bOWSjOKKmU/nmoTkvY3nva7lhbPns7vmmK/nm7jliIfvvIw8YnI+5pWF6YCJQ++8jg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.在△ABC中,∠A=90°,AB=3cm,AC=4cm,若以A为圆心3cm为半径作⊙O,则BC与⊙O的位置关系是( )
A: 相交 |
B: 相离 |
C: 相切 |
D: 无法确定 |
一次做对,真牛!
+5奖励规则>
- 提示1:6aaW5YWI5rGC5Ye654K5QeS4juebtOe6v0JD55qE6Led56a777yM5qC55o2u55u057q/5LiO5ZyG55qE5L2N572u5YWz57O75b6X5Ye6QkPkuI7iiplP55qE5L2N572u5YWz57O777yO
- 答案:QQ==
6Kej77ya5YGaQUTiiqVCQ++8jDxicj7iiLXiiKBBPTkwwrDvvIxBQj0zY23vvIxBQz00Y23vvIzoi6Xku6VB5Li65ZyG5b+DM2Nt5Li65Y2K5b6E5L2c4oqZT++8jDxicj7iiLRCQz0177yMPGJyPuKItEFEw5dCQz1BQ8OXQULvvIw8YnI+6Kej5b6X77yaQUQ9Mi4077yMMi4077ycM++8jDxicj7iiLRCQ+S4juKKmU/nmoTkvY3nva7lhbPns7vmmK/vvJrnm7jkuqTvvI48YnI+5pWF6YCJQe+8jjxicj48aW1nIHdpZHRoPTEyNCBoZWlnaHQ9MTE4IHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMTAvNTgvckJBQ0ZGVmltNW14ZThBNUFBQUstbGNJQU0wNjIwLnBuZyI+
本课配套习题挑战模式3/5
单选题
难度系数:
3.已知在平面直角坐标系中,圆P的圆心坐标为(4,5),半径为3个单位长度,把圆P沿水平方向向左平移d个单位长度后恰好与y轴相切,则d的值是()
A: 1 |
B: 2 |
C: 2或8 |
D: 1或7 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qyy5rGCZOeahOWAvO+8jOWFs+mUruaYr+imgeiAg+iZkeKKmVDkuI556L205LuO5bem55u45YiH5byA5aeL77yM57un57ut56e75Yqo5pe25Lya5LiOeei9tOWPs+ebuOWIh++8jOaJgOS7peS8muacieS4pOS4quS4jeWQjOeahGTlgLzvvI4=
- 答案:RA==
6Kej77ya5b2T4oqZcOWcqOWOn+eCueWPs+S+p+S4jnnovbTnm7jliIfml7bvvIw8YnI+WC1kPXLvvIw8YnI+4oi0ZD1YLXI9Me+8jjxicj7lvZPiiplw5Zyo5Y6f54K55bem5L6n5LiOeei9tOebuOWIh+aXtu+8jDxicj5YK3I9ZO+8jDxicj7iiLRkPTfvvIw8YnI+5omA5LulZOeahOWAvOaYrzHmiJY377yOPGJyPuaVhemAiUTvvI4=
本课配套习题挑战模式4/5
单选题
难度系数:
4.已知在等腰三角形ABC中,AB=AC=5,底边BC=6,若以顶点A为圆心,以4为半径作⊙A,则BC与⊙A()
A: 相交 |
B: 相切 |
C: 相离 |
D: 不能确定 |
一次做对,真牛!
+5奖励规则>
- 提示1:5q2k6aKY5Y+q6ZyA5qC55o2u562J6IWw5LiJ6KeS5b2i55qE5LiJ57q/5ZCI5LiA5ZKM5Yu+6IKh5a6a55CG77yM5rGC5b6X5ZyG5b+DQeWIsOebtOe6v0JD55qE6Led56a7
- 提示2:5qC55o2u5pWw6YeP5YWz57O76L+b6KGM5Yik5pat77yOPGJyPuiLpWTvvJxy77yM5YiZ55u057q/5LiO5ZyG55u45Lqk77yb6IulZD1y77yM5YiZ55u057q/5LqO5ZyG55u45YiH77yb6IulZO+8nnLvvIzliJnnm7Tnur/kuI7lnIbnm7jnprvvvI4=
- 答案:Qg==
6Kej77ya6Kej77ya5L2cQUTiiqVCQ+S6jkTvvI48YnI+5qC55o2u562J6IWw5LiJ6KeS5b2i55qE5LiJ57q/5ZCI5LiA77yM5b6XQkQ9M++8mzxicj7lho3moLnmja7li77ogqHlrprnkIblvpdBRD0077yMPGJyPuKItTQ9NO+8jDxicj7iiLTku6U05Li65Y2K5b6E55qE4oqZQeS4jkJD5omA5Zyo55u057q/55qE5L2N572u5YWz57O75piv55u45YiH77yOPGJyPuaVhemAiULvvI48YnI+PGltZyB3aWR0aD0xMTUgaGVpZ2h0PTg4IHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvN0EvRDUvckJBQ0psVmltNktUQlhkb0FBQUpFWWJZaTg0MjczLnBuZyIgPg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.在平面直角坐标系中,以点(2,3)为圆心,2为半径的圆必定( )
A: 与x轴相离,与y轴相切 |
B: 与x轴,y轴都相离 |
C: 与x轴相切,与y轴相离 |
D: 与x轴,y轴都相切 |
一次做对,真牛!
+5奖励规则>
- 提示1:5pys6aKY5bqU5bCG6K+l54K555qE5qiq57q15Z2Q5qCH5YiG5Yir5LiO5Y2K5b6E5a+55q+U77yM5aSn5LqO5Y2K5b6E55qE55u456a777yM562J5LqO5Y2K5b6E55qE55u45YiH77yO
- 答案:QQ==
6Kej77ya4oi15piv5Lul54K577yIMu+8jDPvvInkuLrlnIblv4PvvIwy5Li65Y2K5b6E55qE5ZyG77yMPGJyPuWmguWbvuaJgOekuu+8mjxicj7iiLTov5nkuKrlnIbkuI556L2055u45YiH77yM5LiOeOi9tOebuOemu++8jjxicj7mlYXpgIlB77yOPGJyPjxpbWcgd2lkdGg9MjUxIGhlaWdodD0yMzIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC9CMC83Mi9yQkFDRTFWaW02ZWlYUkRpQUFBSmFZSHZIVTQ2NzgucG5nIiA+