根据题意,AE=DE,BE=CE,且∠A=85°,可知△ABE≌△DCE(SAS)。因此,∠D=∠A=85°。由于BE=CE,△BCE为等腰三角形,∠EBC=∠ECB。根据三角形内角和定理,∠EBC+∠ECB+∠D=180°,所以∠EBC=(180°-∠D)/2=47.5°。 最终答案:47.5°反馈 收藏 ...
2024原创题(1)如图1,AC,BD交于点E,AE=DE,BE=CE,∠A=85°,∠DCE=2°,则{\angle}BAC的度数为___; 相关知识点: 全等三角形 全等三角形的基本应用 全等三角形的判定——基础 一般三角形全等的判定 试题来源: 解析 93^o 由题意,AE=DE,BE=CE,且∠AEB=∠DEC,根据SAS判定,△AEB≌△DEC。因此,...
Derived column implicit DT_STR to DT_WSTR conversion question (SSIS 2008 SP1) Derived Column Task failing with error 0xC0049067 derived column task in ssis 2012, the length can't not change manually. Destination: Cannot locate the mapping file to map the provider types to SSIS types Devel...
PaliGemma can answer questions about an image, simply pass your question along with the image to do so. Detection PaliGemma can detect entities in an image using the detect [entity] prompt. It will output the location for the bounding box coordinates in the form of special <loc[value...
Researchonthequestion_s_u_g_g_e_s_ts_/_s_u_g_g_e_st_e_d_/_h_a_s_s_u_g_g_e_st_e_d_(suggest)that,formoststudents,itdoesn’t.解析：考查时态。句意：对于这个问题的研究表明，对于大多数学生来说，它不重要。这里表示研究的客观结果，所以用一般现在时，一般过去时或现在完成时均可，故...
1.(2024 ·大连模拟)活动课上,李老师给出如下问题:如图①,在△ABC中,D是AB的中点,E是AC的一个三等分点,且AC =3CE,连接CD,BE 交于点F,求证:CF =D F.C EA D B(第1题①)①小鹏同学利用“三角形中位线的性质”,取BE的中点G,连接DG,再通过“全等三角形的性质”解决问题.②小亮同学利用“三角形...
2[2024 合肥四十六中期末]如图,∠ACB =90°,AC =BC,BE ⊥CE 于点 E,AD⊥CE 于点 D,AD =2.5 cm, DE =1.7 cm,则BE的长为 () A. 0. 8 cm B. 1 cm C.1.5 cm D.4. 2 cm BE D。C A第2题图 相关知识点: 试题来源: 解析 2 A ∵BE⊥CE , AD⊥CE , ∴∠E=∠ADC=90° , ...
The question of one's responsibility to comply with all instructions given by a law enforcement officer recently came up following a traffic stop involving Miami Dolphins wide receiver Tyreek Hill.
Arabic question mark Arduino and SQL Server Are there any Bitmap(ped) indexes in SQL Server? Are there MIN(A,B) or MAX(A,B) functions in SQL? Argument data type datetime is invalid for argument 3 of json_modify function Argument data type sql_variant is invalid for argument 1 of lik...
it is essential for students to start preparing early, not only by studying the required textbooks but also by reading more English articles and practicing with past examination papers.By doing so, theycan familiarize themselves with the question types and improve their reading speed and accuracy. ...