本课配套习题挑战模式1/5
单选题
难度系数:
1.以下列各组线段为边,能组成三角形的是( )
A: 1cm,2cm,4cm |
B: 4cm,6cm,8cm |
C: 5cm,6cm,12cm |
D: 2cm,3cm,5cm |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS4ieinkuW9oueahOS4iei+ueWFs+ezuw==
- 提示2:IOS7u+aEj+S4pOi+ueS5i+WSjOWkp+S6juesrOS4iei+ue+8jOS7u+aEj+S4pOi+ueS5i+W3ruWwj+S6juesrOS4iei+uQ==
- 答案:Qg==
PGRpdj7op6PvvJrmoLnmja7kuInop5LlvaLnmoTkuInovrnlhbPns7vvvIznn6U8YnI+QeOAgTErMu+8nDTvvIzkuI3og73nu4TmiJDkuInop5LlvaLvvJs8YnI+QuOAgTQrNu+8njjvvIzog73lpJ/nu4TmiJDkuInop5LlvaLvvJs8YnI+Q+OAgTUrNu+8nDEy77yM5LiN6IO957uE5oiQ5LiJ6KeS5b2i77ybPGJyPkTjgIEyKzM9Ne+8jOS4jeiDvee7hOaIkOS4ieinkuW9oi4gPGJyPuaVhemAiUIuIDwvZGl2Pg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.某同学手里拿着长为3和2的两个木棍,想要找一个木棍,用它们围成一个三角形,那么他所找的这根木棍长满足条件的整数解是( )
A: 1,3,5 |
B: 1,2,3 |
C: 2,3,4 |
D: 3,4,5 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS4ieinkuW9ouS4iei+ueWFs+ezuw==
- 提示2:IOKRoOS4ieinkuW9ouS4pOi+ueS5i+WSjOWkp+S6juesrOS4iei+ueKRoeS4ieinkuW9oueahOS4pOi+ueW3ruWwj+S6juesrOS4iei+ueaxguWHuuesrOS4iei+ueeahOWPluWAvOiMg+WbtA==
- 提示3:IOaJvuWHuuiMg+WbtOWGheeahOaVtOaVsA==
- 答案:Qw==
PGRpdj7op6PvvJrorr7ku5bmiYDmib7nmoTov5nmoLnmnKjmo43plb/kuLp477yM55Sx6aKY5oSP5b6X77yaPGJyPjMtMu+8nHjvvJwzKzLvvIw8YnI+4oi0Me+8nHjvvJw177yMPGJyPuKItXjkuLrmlbTmlbDvvIw8YnI+4oi0eD0y77yMM++8jDTvvIw8YnI+5pWF6YCJ77yaQy4gPC9kaXY+
本课配套习题挑战模式3/5
单选题
难度系数:
3.已知三角形三边长分别为2,x,13,若x为正整数,则这样的三角形个数为( )
A: 2 |
B: 3 |
C: 5 |
D: 13 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS4ieinkuW9oueahOS4iei+ueWFs+ezuw==
- 提示2:IOS4ieinkuW9ouS4pOi+ueS5i+WSjOWkp+S6juesrOS4iei+ue+8jOS4pOi+ueW3ruWwj+S6juesrOS4iei+uQ==
- 提示3:IOWcqOiMg+WbtOWGheWPluaVtOaVsA==
- 答案:Qg==
PGRpdj7op6PvvJrnlLHpopjmhI/lj6/lvpfvvIw8L2Rpdj48ZGl2PjxpbWcgd2lkdGg9NzAgaGVpZ2h0PTYyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvRjIvRjgvckJBQ0ZGTUhVRERqaG03dkFBQUN6RWFEcEVNMDM1LnBuZyI+77yMPGJyPuino+W+l++8jDEx77yceO+8nDE177yMPGJyPuaJgOS7pe+8jHjkuLoxMuOAgTEz44CBMTTvvJs8YnI+5pWF6YCJQi4gPC9kaXY+
本课配套习题挑战模式4/5
单选题
难度系数:
4.如图,x的值可能为( )
A: 10 |
B: 9 |
C: 7 |
D: 6 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNruS4ieinkuW9ouS4iei+ueWFs+ezuw==
- 提示2:IOeUsTPvvIw377yMeOW+l+WIsOS4gOS4quiMg+WbtDTvvJx477ycMTA=
- 提示3:IOeUsTTvvIwxMe+8jHjlvpfliLDkuIDkuKrojIPlm7Q377yceO+8nDE1
- 答案:Qg==
PGRpdj7op6PvvJrnlLHkuInop5LlvaLkuInovrnlhbPns7vlj6/lvpfvvJo8YnI+5Zyo5LiK6Z2i5LiJ6KeS5b2i5LitNO+8nHjvvJwxMO+8jDxicj7lnKjkuIvpnaLkuInop5LlvaLkuK0377yceO+8nDE177yMPGJyPuaVhTfvvJx477ycMTAuIDxicj7mlYXpgIlCLiA8L2Rpdj4=
本课配套习题挑战模式5/5
单选题
难度系数:
5.如图,D,E是△ABC内两点,下列说法中正确的有几个(). ①AF+AG>FG;②FB+FD>BD;③AB+AC>BD+ED+EC;④AB+AC>FG-FD-EG+BD+EC;
A: 1个 |
B: 2个 |
C: 3个 |
D: 4个 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWIqeeUqOS4ieinkuW9ouS4iei+ueWFs+ezuw==
- 提示2:IOS4pOi+ueS5i+WSjOWkp+S6juesrOS4iei+uQ==
- 提示3:IOWIqeeUqOetiemHj+S7o+aNog==
- 答案:RA==
PGRpdj7or4HmmI7vvJrlu7bplb9EReOAgUVE5YiG5Yir5LqkQULjgIFBQ+S6jkbjgIFH77yMPGJyPuWcqOKWs0FGR+S4re+8mkFGK0FH77yeRkfikaDvvIw8YnI+5Zyo4pazQkZE5Lit77yaRkIrRkTvvJ5CROKRoe+8jDxicj7lnKjilrNFR0PkuK3vvJpFRytHQ++8nkVD4pGi77yMPGJyPuKItUZEK0VEK0VHPUZH77yMPGJyPuKItOKRoCvikaEr4pGi5b6X77yaPGJyPkFGK0ZCK0ZEK0VHK0dDK0FH77yeRkcrQkQrRUPvvIw8YnI+5Y2z77yaQUIrRkQrRUcrQUPvvJ5GRytCRCtFQ++8jDxicj5BQitBQ++8nkZHLUZELUVHK0JEK0VD77yMPGJyPuKItEFCK0FD77yeQkQrRUQrRUMuIDwvZGl2Pg==