ve hinh theo cach dien dat sau:
-cho 3 diem A,B,C khong thang hang
-ve hai tia ab,ac
-ve ay la tia doi cua tia ac
-lay i la trung diem cua doan thang bc
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
Những câu hỏi liên quan
19 tháng 11 2017
jkfhfyøht7tytytytycbvb bvvbh dzhftîhkdfagñaøtyzhsdfyøhgbngkuqöieohwoiquyqiôûpquuqpuitôeuyeutfhsdhcfuïoqöøkljsdfcnsdhdcccccdtsudruùnhrgjjljlbyhutnmìoûvsed44fyh7uklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklklkl////////////////////////////////0nmmmmmmmmmmmmmmmmmmmmmmmmlllllllllllllllllllllllllllk,,,,,,,,,,,,,,,,,,,,hkkkkkkkkkkkkkkkkkkkkkkkkkkkkk;jkkkkkkkkkkkkkkkkkkkkkkkkkkkkhkokokokokokokokokokokokokokoko.okkkkkkkkkkkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkkkkokkkkkkkkkkkkkkkkkkokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokokoâkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
EP
14 tháng 12 2015
Ban tu ve hinh,mk ko biet cach ve
a/Diem B la diem nam giua A va C vi AB<AC(2cm<8cm)
Ta co:AB+BC=AC
2 +BC= 8
BC=8-2=6 cm
b/Vi M la trung diem cua doan thang BC nen BM=CM=BC:2=6:2=3 cm
c/Diem A la diem nam giua B va D vi B va D la hai tia doi nhau chung goc A
Diem A la trung diem cua doan thang BD vi:
+A nam giua D va B
+AD=AB=2 cm