![subject](/tpl/images/cats/mat.png)
Mathematics, 22.07.2021 14:00 courtlyn8
Cho tam giác ABC vuông tại B, có AB =5cm, BC=12cm .Trên tia đối của BA lấy điểm D sao cho BA=BD, trên cạnh BC lấy điểm E sao cho BE=4cm.
a) Tính độ dài cạnh BC
b) Chứng minh tam giác EAD cân
c) Tia AE cắt DC tại K . Chứng minh K là trung điểm của DC
d) Chứng minh AD<4EK
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:10
Aculture started with 2,000 bacteria. after 8 hours, it grew to 2,400 bacteria. predict how many bacteria will be present after 19 hours . round your answer to the nearest whole number. p=ae^kt
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 03:30
Is a triangle with sides of length 6ft, 21 ft, 23 ft. a right triangle?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 04:00
1.what effect does replacing x with x−4 have on the graph for the function f(x) ? f(x)=|x−6|+2 the graph is shifted 4 units up. the graph is shifted 4 units down. the graph is shifted 4 units left. the graph is shifted 4 units right. 2.what are the coordinates of the hole in the graph of the function f(x) ? f(x)=x^2+3x−28/x+7 3.which graph represents the function?
Answers: 2
You know the right answer?
Cho tam giác ABC vuông tại B, có AB =5cm, BC=12cm .Trên tia đối của BA lấy điểm D sao cho BA=BD, trê...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 16:00
![question](/tpl/images/cats/health.png)
Health, 27.06.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 16:00
![question](/tpl/images/cats/en.png)
English, 27.06.2019 16:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 16:00
![question](/tpl/images/cats/mat.png)
Mathematics, 27.06.2019 16:00
![question](/tpl/images/cats/istoriya.png)
History, 27.06.2019 16:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 27.06.2019 16:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 27.06.2019 16:00