a) Nếu một đường thẳng cắt hai đường thẳng sao cho có một cặp góc so le trong bằng nhau thì hai đường thẳng đó song song.

b) Nếu hai đường thẳng phân biệt cùng song song với một đường thẳng thứ ba thì chúng song song với nhau.

a) Nếu một đường thẳng cắt hai đường thẳng song song thì hai góc so le trong bằng nhau

b) Nếu hai đường thẳng phân biệt cùng vuông góc với một đường thẳng thứ ba thì chúng song song với nhau

Hi! My name is Bao Long from class 7A1 and today i am gonna talk about the movie "Mùi cỏ cháy"

"Mùi cỏ cháy" is a vietnamese movie about war drama .The movie take place in the battle of Quang Tri, in 1970s .The story tell about four young students who is Hoàng,Thăng,Thành,Long , they are very smart and kind people 

But , they volunteer to join the army during the Vietnam War in the 1970s. At first , they all very excited because they are fighting for thier country but as they face the brutal realities of battle at Quang Tri, their lives, friendships, and ideals are put to the test ,but after all they just only remeber one thing,that is they fight for thier country ,they fight for thier family ,they fight for thier love and they fight for freedom.Four people, Hoang, Thanh, Thang, Long, but only one survived. Long was so panicked that he was hit by an artillery shell. Thanh courageously sacrificed his life when he used the gun's bayonet to rush forward to kill the enemy. Thang also died when he was shot in the chest by two enemies while on duty. So Only Hoang was still alive. When the country was at peace, he lived in loneliness after losing his most precious friends. Looking back at the photos he took with his friends, he burst into tears as he remembered them. painful memories of war

Known for its powerful depiction of youth and sacrifice, *Mùi cỏ cháy* captures the emotional and psychological struggles of war, emphasizing themes of patriotism, camaraderie, and loss. The film received acclaim for its poignant storytelling and moving performances, earning several awards in Vietnam.

So finally, i just gonna say this movie is awsome! I love history so that's why i very very like this movie .I think this movie is for those who like war movie type

So that's all! Hope you like this movie! Bye Bye!