本课配套习题挑战模式1/5
单选题
难度系数:
1.正多边形的一个内角为135°,则该多边形的边数为( )
A: 9 |
B: 8 |
C: 7 |
D: 4 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWFiOaxguWHuuWkluinkueahOW6puaVsO+8jOagueaNruS7u+S9leWkmui+ueW9oueahOWkluinkuWSjOmDveaYrzM2MOW6pu+8jOWIqeeUqDM2MOmZpOS7peWkluinkueahOW6puaVsOWwseWPr+S7peaxguWHuuWkmui+ueW9oueahOi+ueaVsA==
- 答案:Qg==
PGRpdj7op6PvvJriiLXmraPlpJrovrnlvaLnmoTkuIDkuKrlhoXop5LkuLoxMzXCsO+8jDxicj7iiLTlpJbop5LmmK8xODAtMTM1PTQ1wrDvvIw8YnI+4oi1MzYww7c0NT0477yMPGJyPuWImei/meS4quWkmui+ueW9ouaYr+WFq+i+ueW9ojwvZGl2Pg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.
若一个多边形的内角和等于720°,则这个多边形的边数是( )
A: 5 |
B: 6 |
C: 7 |
D: 8 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5Yip55So5aSa6L655b2i55qE5YaF6KeS5ZKM5YWs5byP5Y2z5Y+v5rGC6KejPC9wPg==
- 答案:Qg==
PGRpdj7op6PvvJrkvp3mja7lpJrovrnlvaLnmoTlhoXop5LlkozlhazlvI/vvIzvvIhuLTLvvInDlzE4MMKwPTcyMMKw77yM5omA5Lulbj02PHNwYW4gY2xhc3M9Im1hdGhxdWlsbC1yZW5kZXJlZC1tYXRoIiBzdHlsZT0iZm9udC1zaXplOjIwcHg7Ij48c3BhbiBjbGFzcz0idGV4dGFyZWEiPjx0ZXh0YXJlYSBkYXRhLWNrZS1lZGl0YWJsZT0iMSIgY29udGVudGVkaXRhYmxlPSJmYWxzZSI+PC90ZXh0YXJlYT48L3NwYW4+PHNwYW4gY2xhc3M9Im5vbi1sZWFmIiBtYXRocXVpbGwtY29tbWFuZC1pZD0iNCI+PHNwYW4gc3R5bGU9InRyYW5zZm9ybTogc2NhbGUoMSwgMS4wNSk7IiBjbGFzcz0ic2NhbGVkIHBhcmVuIj48dmFyPjxlbT48L2VtPjwvdmFyPjwvc3Bhbj48c3BhbiBjbGFzcz0ibm9uLWxlYWYiIG1hdGhxdWlsbC1ibG9jay1pZD0iNSI+PHZhciBtYXRocXVpbGwtY29tbWFuZC1pZD0iNyI+PC92YXI+PHNwYW4gY2xhc3M9ImJpbmFyeS1vcGVyYXRvciIgbWF0aHF1aWxsLWNvbW1hbmQtaWQ9IjgiPjwvc3Bhbj48c3BhbiBtYXRocXVpbGwtY29tbWFuZC1pZD0iOSI+PC9zcGFuPjwvc3Bhbj48c3BhbiBzdHlsZT0idHJhbnNmb3JtOiBzY2FsZSgxLCAxLjA1KTsiIGNsYXNzPSJzY2FsZWQgcGFyZW4iPjwvc3Bhbj48L3NwYW4+PHNwYW4gbWF0aHF1aWxsLWNvbW1hbmQtaWQ9IjEwIj48L3NwYW4+PHNwYW4gbWF0aHF1aWxsLWNvbW1hbmQtaWQ9IjExIj48L3NwYW4+PHNwYW4gbWF0aHF1aWxsLWNvbW1hbmQtaWQ9IjEyIj48L3NwYW4+PC9zcGFuPjxicj48L2Rpdj4=
本课配套习题挑战模式3/5
单选题
难度系数:
3.
一个多边形的内角和是外角和的2倍,则这个多边形的边数为( )
A: 4 |
B: 5 |
C: 6 |
D: 7 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5aSa6L655b2i55qE5aSW6KeS5ZKM5Li6MzYwwrA8YnI+PC9wPg==
- 答案:Qw==
PGRpdj7op6PvvJrorr7ov5nkuKrlpJrovrnlvaLmmK9u6L655b2i77yM5qC55o2u6aKY5oSP77yM5b6XPGJyPu+8iG4tMu+8icOXMTgwwrA9MzYwwrDDlzLvvIzlvpduPTY8YnI+PC9kaXY+
本课配套习题挑战模式5/5
单选题
难度系数:
5.
一个正多边形它的一个外角等于与它不相邻的内角的,则这个多边形是()
A: 正十二边形 |
B: 正十边形 |
C: 正八边形 |
D: 正六边形 |
一次做对,真牛!
+5奖励规则>
- 提示1:PHA+5q2j5aSa6L655b2i55qE5q+P5Liq5YaF6KeS6YO955u4562J77yM5aSW6KeS562J5LqO5LiO5a6D5LiN55u46YK755qE5YaF6KeS55qE5Zub5YiG5LmL5LiA77yM5Y+v55+l6K+l5aSa6L655b2i5YaF6KeS5Li6MTQ0wrDvvIzlpJbop5IzNsKwPGJyPjwvcD4=
- 答案:Qg==
PGRpdj7mraPlpJrovrnlvaLnmoTmr4/kuKrlhoXop5Lpg73nm7jnrYnvvIzlpJbop5LnrYnkuo7kuI7lroPkuI3nm7jpgrvnmoTlhoXop5LnmoTlm5vliIbkuYvkuIDvvIzlj6/nn6Xor6XlpJrovrnlvaLlhoXop5LkuLoxNDTCsO+8jOWkluinkjM2wrA8YnI+PC9kaXY+