本课配套习题挑战模式1/5
单选题
难度系数:
1.如图,在▱ABCD中,AD=6,AB=4,DE平分∠ADC交BC于点E,则BE的长是( )
A: 2 |
B: 3 |
C: 4 |
D: 5 |
一次做对,真牛!
+5奖励规则>
- 提示1:55Sx5Zub6L655b2iQUJDROaYr+W5s+ihjOWbm+i+ueW9ou+8jOWPr+W+l0JDPUFEPTbvvIxDRD1BQj0077yMQUTiiKVCQ++8jOW+l+KIoEFERT3iiKBERUPvvIzlj4jnlLFEReW5s+WIhuKIoEFEQ++8jOWPr+W+l+KIoENERT3iiKBERUPvvIzmoLnmja7nrYnop5Llr7nnrYnovrnvvIzlj6/lvpdFQz1DRD0077yM5omA5Lul5rGC5b6XQkU9QkMtRUM9Mu+8jg==
- 答案:QQ==
6Kej77ya4oi15Zub6L655b2iQUJDROaYr+W5s+ihjOWbm+i+ueW9ou+8jDxicj7iiLRCQz1BRD0277yMQ0Q9QUI9NO+8jEFE4oilQkPvvIw8YnI+4oi04oigQURFPeKIoERFQ++8jDxicj7iiLVEReW5s+WIhuKIoEFEQ++8jDxicj7iiLTiiKBBREU94oigQ0RF77yMPGJyPuKItOKIoENERT3iiKBERUPvvIw8YnI+4oi0RUM9Q0Q9NO+8jDxicj7iiLRCRT1CQy1FQz0y77yOPGJyPuaVhemAiUHvvI4=
本课配套习题挑战模式2/5
单选题
难度系数:
2.如图,已知△ABC的面积为24,点D在线段AC上,点F在线段BC的延长线上,且BC=4CF,DCFE是平行四边形,则图中阴影部分的面积为( )
A: 3 |
B: 4 |
C: 6 |
D: 8 |
一次做对,真牛!
+5奖励规则>
- 提示1:55Sx6aKY5oSP5Y+v55+l4pazQURF5ZKM4pazREVC5ZCM5LiA5bqVREXnmoTpq5jkuLrilrNBQkPnmoTovrlCQ+S4iueahOmrmO+8jOWPiOWboOW5s+ihjOWbm+i+ueW9ouWSjOmYtOW9semDqOWIhuWQjOW6leetiemrmO+8jOWImemYtOW9semDqOWIhueahOmdouenr+aYr+W5s+ihjOWbm+i+ueW9oueahOmdouenr+eahOS4gOWNiu+8jOS7juiAjOmXrumimOW+l+ino++8jg==
- 答案:Qw==
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
本课配套习题挑战模式3/5
单选题
难度系数:
3.如图,平行四边形ABCD的对角线AC和BD交于点O,若AC=6,BD=10,AB=4,则平行四边形ABCD面积等于().
A: 20 |
B: 24 |
C: 28 |
D: 32 |
一次做对,真牛!
+5奖励规则>
- 提示1:55Sx5bmz6KGM5Zub6L655b2iQUJDROeahOWvueinkue6v0FD5ZKMQkTkuqTkuo7ngrlP77yM6IulQUM9Nu+8jEJEPTEw77yMQUI9NO+8jOaYk+axguW+l09B5LiOT0LnmoTplb8=
- 提示2:55Sx5Yu+6IKh5a6a55CG55qE6YCG5a6a55CG77yM6K+B5b6XQUPiiqVBQu+8jOe7p+iAjOaxguW+l+etlOahiO+8jg==
- 答案:Qg==
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
本课配套习题挑战模式4/5
单选题
难度系数:
4.在平行四边形ABCD中,对角线AC与BD相交于点O,若AC=6,BD=8,则边AB的取值范围是( )
A: 1<AB<7 |
B: 2<AB<4 |
C: 6<AB<8 |
D: 3<AB<4 |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5Zyo5LiJ6KeS5b2i5Lit5Lu75oSP5Lik6L655LmL5ZKM5aSn5LqO56ys5LiJ6L6577yM5Lu75oSP5Lik6L655LmL5beu5bCP5LqO56ys5LiJ6L6577yO5Y2z5Y+v5rGC6Kej
- 提示2:5pys6aKY5Y+v55S75Ye65Zu+5b2i77yM5YaN5qC55o2u5LiJ6KeS5b2i5b2i5oiQ55qE5p2h5Lu277ya5Lu75oSP5Lik6L655LmL5ZKM5aSn5LqO56ys5LiJ6L6577yM5Lu75oSP5Lik6L655LmL5beu5bCP5LqO56ys5LiJ6L655Y+v5b6X5Ye6QULnmoTlj5blgLzojIPlm7TvvI4=
- 答案:QQ==
6Kej77ya4oi15Zub6L655b2iQUJDROaYr+W5s+ihjOWbm+i+ueW9ou+8jjxicj7iiLRPQT0z77yMT0I9NO+8jjxicj7lnKjilrNBT0LkuK3vvJo0LTPvvJxBQu+8nDQrM++8jOWNszHvvJxBQu+8nDfvvI7mlYXpgIlB77yO
本课配套习题挑战模式5/5
单选题
难度系数:
5.如图,在平行四边形ABCD中,AB=3,BC=5,AC的垂直平分线交AD于E,则△CDE的周长是( ).
A: 4 |
B: 6 |
C: 8 |
D: 10 |
一次做对,真牛!
+5奖励规则>
- 提示1:55SxQUPnmoTlnoLnm7TlubPliIbnur/kuqRBROS6jkXvvIzmmJPor4HlvpdBRT1DRQ==
- 提示2:55Sx5Zub6L655b2iQUJDROaYr+W5s+ihjOWbm+i+ueW9ou+8jOWNs+WPr+axguW+l0FE5LiOREPnmoTplb/vvIznu6fogIzmsYLlvpfnrZTmoYjvvI4=
- 答案:Qw==
6Kej77ya4oi1QUPnmoTlnoLnm7TlubPliIbnur/kuqRBROS6jkXvvIw8YnI+4oi0QUU9Q0XvvIw8YnI+4oi15Zub6L655b2iQUJDROaYr+W5s+ihjOWbm+i+ueW9ou+8jDxicj7iiLRDRD1BQj0z77yMQUQ9QkM9Ne+8jDxicj7iiLTilrNDREXnmoTlkajplb/mmK/vvJpERStERStDRT1EQytERStBRT1EQytBRD0zKzU9OO+8jjxicj7mlYXnrZTmoYjkuLrvvJo477yO