Giải giúp mk vs
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Ta có: ΔABC cân tại A
mà AH là đường trung tuyến
nên AH vừa là đường cao, vừa là đường phân giác
Xét \(\Delta ABC\) có: AB=AC \(\Rightarrow\)\(\Delta ABC\) cân tại A
\(\Rightarrow\)AH vừa là đường trung tuyến vừa là đường cao vừa là đường phân giác của \(\widehat{A}\) trong \(\Delta ABC\)
\(\Rightarrow AH\perp BC\)
1.needn't
2.impressed
3.the
4.send
5.the
6.who
ko biết đúng ko nữa
Part 1
1 needn't
2 impressed
3 with
4 send
5 the
6 who
Part 2
1f 2d 3c 4b 5a 6g
Part 3
1 was cooking
2 surfing
3 went
4 was going to visit
5 try
6 widened
7 cultural
8 conveniently
Part 4
1 serious -> seriously
2 well-preserved -> be well-preserved
Part 5
1 my english were good
2 going to the english-
3 area has been spoiled
4 which I read
Part 6
1 without
2 be damaged
3 healthy
4 destruction
Part 7
2F 3F 4F
1, How many languages can you speak?
2,How does she go to school?\
3, When didn your mother visit HLB?
4, How often does your grandpa listen to the radio?
5, Who gave you a present on your birthday party?
1 What can you speak?
2 How does she go to school
3 When did your mother visit Ha Long Bay
4 How often does your grandfather listen to the radio?
5 Who gave you a present on your birthday party