20 As shown in Figure 1, C E ⊥AB at point E and D F ⊥AB at point F. AD = BC and A E = B F .(1)Prove: BC ∥AD;(2) If △ABD is flipped over and folded 180° as shown in Figure 2, try to explain AC = DB .C CA B A E F B Figure 1Figure 2 ...
结果1 题目27. As shown in figure 1, in △ABC, B D and C D bisects ∠ABC and ∠ACB respectively.(1) If ∠ A =60°, find the degree of ∠D;A DB Cfigure 1(2) If ∠ A =n°, then ∠ D =___; (Express it in terms of n)(3 ) As shown in figure 2, in △A...
apreceding state of the device. Furthermore, the existence of NFR 设备的在先的状态。 此外, NFR的存在[translate] athe anode. It has been empirically demonstrated that the insertion[translate] athe NFR becomes sharper with time, as shown in Figure 1C, it is[translate]...
27. As shown in figure 1, given that points B, C and E lie on the same straight line,△ABC and △DCE are all equilateral triangles, connect AE,BD.(1) Question: how many congruent triangles are there in figure 1? Choose one ofthem and state the reason.(2) If you change the...
As shown in Figure 1 翻译结果5复制译文编辑译文朗读译文返回顶部 Shown in Figure 1 相关内容 a拍摄成视频上传至校园网 Photographs video frequency uploading to the campus net[translate] a你穿这条裙子看起来漂亮 正在翻译,请等待...[translate]
FG=16/3 设正方形边长为a，CG长度为b，FG长度为x a/(a+b)=5/(3+x)b/a=x/8 解得x=16/3 就是运用相似三角形的知识，ADF相似于CFG，ADE相似于BEG，虽然有三个未知数，但是会自然消掉一个。
10 As shown in Figure ①, in square ABCD, E, F, G and H are points on AB, BC, CD andDA, respectively, and HA=EB=FC=GD. Join E to G and F to H, and the intersectionpoint is O.(1) In Figure ②, join E to F, F to G, G to H and H to E. Determine the shape...
As shown in Figure 1b,c, for the ordered intermetallic phase of Pd3Fe, each type of atom (Pd or Fe) occupies its own position, whereas for the disordered alloys of Pd3Fe, the atomic positions are occupied randomly by Pd and Fe....
As shown in Figure 翻译结果4复制译文编辑译文朗读译文返回顶部 As shown in the picture 翻译结果5复制译文编辑译文朗读译文返回顶部 Like the chart shows 相关内容 a我们已经为你联合邮箱, We already united the mailbox for you,[translate] a如果您在使用软件过程中遇到任何问题 If you meet any question ...
25. As shown in the figure, C is a point on line segmentEAB,∠DCE=∠A=∠B,and CD=CE.D(1) State the reason that △ACD and △BCEarecongruentACB(2) Tell the quantitative relationship in AB, AD and BE, and state the reason. ...