Delta BDA~ Delta BAC rArr (AD)/(AC)=(BA)/(BC)In the given figure, angle CAB=90^(@) and AD bot BC. Show that Delta BDA~ Delta BAC. if AC=75 cm, AB=1 m and BC=1.25 cm, find AD.
See the given figure, In ABC, seg ADbot" seg "BC,angleC=45^(@),BD=5andAC=8sqrt(2), find AD and BC.
1(2009) In the figure, angle ABC is equal to 6 degree, and you can create many isosceles triangles by joining the points on BA and BC. Among these isosceles triangles, two adjacent triangles share the same waist (the base is on AB or AC). What is the maximum number of the isosc...
结果1 题目5) In the diagram below, angle ABC =40 °. Find angle AOC, giving a reason for your answer. [1]B O A C 相关知识点: 试题来源: 解析 5) angle AOC = 80Reason: Angle at centre is twice angle at circumference 反馈 收藏 ...
试题来源: 解析 C∵AB//CD//EF,∴\angle ABC=\angle BCD=50{}^\circ ,\angle CEF+\angle ECD=180{}^\circ ;∴\angle ECD=180{}^\circ -\angle CEF=30{}^\circ ,∴\angle BCE=\angle BCD-\angle ECD=20{}^\circ . 反馈 收藏
百度试题 结果1 题目【题目】In the figure above, ∠BAC=20°, ∠CED=35°,∠ABC=80%, what is the angle measure of ∠CDE, in degree? ( )A.55B.65C.75D.85 相关知识点: 试题来源: 解析 【解析】B 反馈 收藏
12. In{\triangle}ABC,{\angle}C=90^{\circ},a=9,b=40, thenc=___.相关知识点: 试题来源: 解析 41 根据勾股定理,在直角三角形ABC中,斜边c的平方等于两直角边a和b的平方和,即c² = a² + b²。代入已知条件a=9,b=40,得到c² = 9² + 40² = 1681。因此,斜边c的值为c ...
63. Find the measure of angle ABC as shown in the following figure, where AC =CB = CD, and the measure of angle ADC is 29.A B 相关知识点: 试题来源: 解析 63. Perhatikan gambar berikut ini!Cara IDiketahui bahwa , maka sehingga diperoleh:Sudut :Diketahui , maka sehingga diperoleh:...
结果1 题目 13 As shown in the diagram, in △ABC, angle bisectors BD and CE intersect at point F. If∠EFD =n°, find the measure of ∠ A.A BC Diagram for Question 13 相关知识点: 试题来源: 解析 (2n-180)° 反馈 收藏 ...
试题详情 题目: (1) Angle ABC is a right angle. (2) Angle ADC is a right angle. 选项: 答案: E 提问列表 提问: 分析是:对顶角都是90度,这个四边形就应该是个长方形吧,所以选了c,请教老师。 解答: 注册太麻烦?点这里查看免费答疑吧!