【简答题】For all of the following questions: DO NOT type your answers into MyLO. There are many questions in this test. If you set up your spreadsheet correctly, you will have plenty of time to complete it. If...
【单选题】已知三角形的两边长分别为3cm和7cm,则下列长度的四条线段中能作为第三边的是( )
【单选题】下列结论中,错误的有( ) 1在Rt△ ABC 中,已知两边长分别为3和4,则第三边的长为5; 2△ ABC 的三边长分别为 AB , BC , AC ,若 BC 2 + AC 2 = AB 2 ,则∠ C =90°; 3在△ ABC 中,若∠ A :∠ B :∠ C =1:5:6,则△ ABC 是直角三角形; 4若三角形的三边长之比为3:4:5,则该三角形是直角三角形;
【简答题】If you get a cellphone call, your sleeve(袖子) will soon be able to answer it. If you want to know how far you’ve run, your trousers will be able to tell you. Can’t decide what to wear? Wish your clothe...
【简答题】两边长分别为3,5的三角形中,第三边边长可取的整数的集合____________________.
【简答题】一个直角三角形的模具,量得其中两边长分别为4cm、3cm,则第三条边长为( ) A.5cm B.4cm C. cm D.5cm或 cm
【单选题】三角形的周长是偶数,其中两条边长分别为2和4,那么第三条边的长应为( )